{"id":8242,"date":"2021-09-07T17:17:07","date_gmt":"2021-09-07T09:17:07","guid":{"rendered":"http:\/\/www.hefeiyu.com\/?p=8242"},"modified":"2021-09-07T17:33:41","modified_gmt":"2021-09-07T09:33:41","slug":"%e3%80%90%e5%ae%9e%e4%b9%a0%e4%b9%8bt100%e5%bc%80%e5%8f%91%e3%80%91genero-fgl-tiptop4gl-%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.hefeiyu.com\/?p=8242","title":{"rendered":"\u3010\u5b9e\u4e60\u4e4bT100\u5f00\u53d1\u3011Genero FGL (TIPTOP4GL) \u5b66\u4e60\u7b14\u8bb01"},"content":{"rendered":"<p>Genero FGL \u5b66\u4e60<\/p>\n<p>&nbsp;<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"null\">Genero FGL \u7b80\u4ecb\r\n\r\nGenero FGL \u5f00\u53d1\uff08\u7f16\u8bd1\u3001\u8fde\u63a5\u3001\u6267\u884c\uff09\r\n\r\n\u7b2c\u4e00\u4e2a\u7a0b\u5e8f Hello World\r\n\r\n\u53d8\u91cf\u4e0e\u8fd0\u7b97\u7b26\r\n\r\n\u53d8\u91cf\u5b9a\u4e49\uff08DEFINE\uff09\r\n\r\n\u9884\u5b9a\u4e49\u53d8\u91cf\r\n\r\n\u53d8\u91cf\u96c6\u5408\uff08RECORD \uff09\r\n\r\n\u6570\u636e\u7ed3\u6784\uff08TYPE\uff09\r\n\r\n\u53d8\u91cf\u8d4b\u503c\uff08LET\uff09\u3001\u521d\u59cb\u5316\uff08INITIALIZE\uff09\r\n\r\n\u5e38\u6570\uff08CONSTANT\uff09\r\n\r\n\u8fd0\u7b97\u7b26\uff08operators\uff09\r\n\r\n\u5168\u5c40\u53d8\u91cf\uff08GLOBALS\uff09\r\n\r\n\u53d8\u6570\u7684\u751f\u547d\u5468\u671f\uff08LOCALE\u3001MODULE\u3001GLOBAL\uff09\r\n\r\n\u63a7\u5236\u8f93\u51fa\u683c\u5f0f\uff08USING\uff09\r\n\r\n\u51fd\u6570\u3001\u6d41\u7a0b\u63a7\u5236\r\n\r\nIMPORT \u5f15\u5165\u94fe\u63a5\u5e93\uff08\u8df3\u8fc7\uff09\r\n\r\nSCHEMA \/ DATABASE \u58f0\u660e\u6570\u636e\u5e93\r\n\r\nMAIN \u51fd\u6570\u4e0e\u8bbe\u5b9a\u533a\u5757\r\n\r\nFUNCTION \u51fd\u6570\r\n\r\n\u62a5\u8868\u7ed3\u6784 REPORT \u51fd\u6570\uff08\u8df3\u8fc7\uff09\r\n\r\nIF\r\n\r\nCASE\r\n\r\nFOR\r\n\r\nWHILE\r\n\r\nCONTINUE\r\n\r\nEXIT\r\n\r\nTRY\u2026CATCH\r\n\r\nSLEEP\r\n\r\nLABEL \u548c GOTO\uff08\uff09\r\n\r\n\u5e38\u7528\u7684\u5185\u7f6e\u51fd\u6570\uff08built-in functions\uff09<\/code><\/pre>\n<p>&nbsp;<\/p>\n<h1>Genero FGL \u7b80\u4ecb<\/h1>\n<p>Genero FGL \u8bed\u8a00\uff0c\u4e3a Four J\u2019s\uff08<a href=\"http:\/\/www.4js.com\/\">http:\/\/www.4js.com<\/a>\uff09\u4e8e 2004 \u5e74\u6240\u53d1\u8868\u3002\u6574\u4f53\u7ed3\u6784\u4e3a\u627f\u88ad\u00a0<strong>INFORMIX<\/strong>\u00a0\u6570\u636e\u5e93\u7684 4GL \u7ba1\u7406\u8bed\u8a00\u800c\u6765\uff0c\u5373 INFORMIX-4GL \u3002<\/p>\n<p>INFORMIX-4GL \u5c5e\u4e8e<strong>\u7b2c\u56db\u4ee3\u67b6\u6784<\/strong>\u7684\u8bed\u8a00\uff0c\u5176\u4f18\u70b9\u5728\u4e8e\u6784\u6210\u7a0b\u5e8f\u7684\u8bed\u6cd5\u548c\u82f1\u6587\u8fd1\u4f3c\uff0c\u53ef\u4ee5\u5927\u5e45\u51cf\u5c11\u5b66\u4e60\u7684\u65f6\u95f4\uff0c\u4f46\u4ec5\u80fd\u4f7f\u7528\u4e8e INFORMIX \u6570\u636e\u5e93\u7684\u63a7\u5236\u4e0a\u3002<\/p>\n<p>Four J\u2019s \u53d6\u5176\u4f18\u70b9\uff0c\u4e3a\u4e86\u80fd\u591f\u5e94\u7528\u4e8e\u66f4\u591a\u540e\u7aef\u6570\u636e\u5e93\uff0c\u5f00\u53d1\u51fa FGL \u8bed\u8a00\uff0c\u5e76\u56e0\u5e94<strong>\u56fe\u578b\u5316<\/strong>\uff0c\u6539\u7248\u4e3a<strong>Genero FGL<\/strong>\uff0c\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n<ul>\n<li>\u5207\u5206\u4e3a Client\u3001Server \u67b6\u6784\uff08GDC \u4e0e fgl\uff09\uff0c\u589e\u8fdb\u6267\u884c\u6548\u7387<\/li>\n<li>\u4ee5 XML Bsae \u505a\u4e3a Client \u53ca Server \u7aef\u6570\u636e\u4f20\u9012\u7684\u67b6\u6784<\/li>\n<li>\u652f\u63f4\u66f4\u591a\u4e0d\u540c\u5e73\u53f0\uff08OS\uff09\u53ca\u6570\u636e\u5e93\u7cfb\u7edf<\/li>\n<li>\u53ef\u5728\u8fd0\u884c\u65f6\u95f4\u52a8\u6001\u8c03\u6574\u753b\u9762\u8f93\u51fa\u7684\u683c\u5f0f\uff08Layout Styles\uff09<\/li>\n<li>\u5f15\u5165\u57fa\u672c\u7684\u00a0<strong>\u5bf9\u8c61\uff08Object\uff09<\/strong>\u00a0\u6982\u5ff5<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"942\" height=\"673\" class=\"wp-image-8243\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-190.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-190.png 942w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-190-768x549.png 768w\" sizes=\"auto, (max-width: 942px) 100vw, 942px\" \/><br \/>\n\u5728 Genero FGL \u8bed\u8a00\u67b6\u6784\u4e2d\uff0c\u5c06\u00a0<strong>\u7a0b\u5e8f\u903b\u8f91\u3001\u753b\u9762<\/strong>\u00a0\u89c6\u4e3a\u4e0d\u540c\u7684\u9879\u76ee\uff0c\u5206\u522b\u64b0\u5199\u3002<br \/>\nProgram\uff08\u7a0b\u5e8f\uff09= MODULE\uff08\u903b\u8f91\u4ee3\u7801\uff09 + FORM\uff08\u753b\u9762\u4ee3\u7801\uff09<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"842\" height=\"519\" class=\"wp-image-8244\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-191.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-191.png 842w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-191-768x473.png 768w\" sizes=\"auto, (max-width: 842px) 100vw, 842px\" \/><br \/>\n\u7531\u4e0a\u56fe\u53ef\u77e5\uff1a<\/p>\n<ol>\n<li>Program \u53ef\u7531\u8bb8\u591a\u7684 Module \u4e0e Form \u6784\u6210\u3002<\/li>\n<li>\u5355\u4e00\u7684 4GL \u7531\u4e00\u4e2a\u6216\u4e00\u4e2a\u4ee5\u4e0a\u7684 Function\u3001Report \u7ec4\u6210\u3002<\/li>\n<li>\u4e00\u4e2a\u5b8c\u6574\u7684 Program \u4e2d\uff0c\u5fc5\u9700\u6307\u5b9a\u4e00\u4e2a\u300eMain\u300f\u4f5c\u4e3a\u7a0b\u5e8f\u6267\u884c\u5165\u53e3\u3002<\/li>\n<\/ol>\n<h1>Genero FGL \u5f00\u53d1\uff08\u7f16\u8bd1\u3001\u8fde\u63a5\u3001\u6267\u884c\uff09<\/h1>\n<p>\u5f53\u7a0b\u5e8f\u53ca\u753b\u9762\u7f16\u5199\u5b8c\u6210\u540e\uff0c\u8fd8\u9700\u7ecf\u8fc7<strong>\u7f16\u7ece(Compile)<\/strong>\u3001<strong>\u8fde\u7ed3(Link)<\/strong>\uff0c\u624d\u80fd\u591f\u88ab<strong>\u6267\u884c(Execute)<\/strong>\u3002<br \/>\n\u7f16\u8bd1\u9700\u8981 Genero Development License\uff0c\u8fde\u7ed3\u53ca\u6267\u884c\u9700\u8981 Genero Runtime License\u3002<\/p>\n<p><strong>\u7f16\u8bd1\u6d41\u7a0b<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1075\" height=\"340\" class=\"wp-image-8245\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-192.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-192.png 1075w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-192-768x243.png 768w\" sizes=\"auto, (max-width: 1075px) 100vw, 1075px\" \/><br \/>\n\u7a0b\u5e8f\u7684\u539f\u59cb\u6587\u4ef6\u540e\u7f00\u540d\u4e3a\u00a0.4gl\uff0c\u7ecf\u8fc7\u7f16\u8bd1\u540e\u4f1a\u4ea7\u751f\u540e\u7f00\u4e3a\u00a0.42m\u00a0\u7684\u6587\u4ef6\u3002<br \/>\n<strong>\u7a0b\u5e8f\uff08Program\uff09\u7684\u7f16\u8bd1<\/strong>\uff1afglcomp [\u7f16\u8bd1\u53c2\u6570] \u5f85\u7f16\u8bd1\u6587\u4ef6\u540d[.4gl]<\/p>\n<p><strong>\u7f16\u8bd1\u524d\u5904\u7406\uff08preprcessor\uff09<\/strong>\u00a0\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f<\/p>\n<p>GeneroFGL \u53ef\u76f4\u63a5\u4ee5\u00a0<strong>\u6587\u5b57\u7f16\u8f91\u7a0b\u5e8f\u5982Vim<\/strong>\u00a0\u8fdb\u884c\u00a0<strong>\u6587\u5b57\u683c\u5f0f<\/strong>\uff08per \u6863\uff09\u7684\u5f00\u53d1\uff1b<br \/>\n\u4e5f\u53ef\u4f7f\u7528 Genero Studio \u5185\u7684\u300eForm Design\u300f\u529f\u80fd\u5f00\u53d1\u00a0<strong>XML\u683c\u5f0f<\/strong>\uff084fd \u6863\uff09\u7684\u753b\u9762\uff1b<br \/>\n\u7f16\u8bd1\u540e\u90fd\u4f1a\u4ea7\u751f\u540e\u7f00\u540d\u4e3a\u00a0.42f\u00a0\u7684\u6587\u4ef6\u3002<\/p>\n<p><strong>\u6587\u5b57\u683c\u5f0f\uff08per\u6587\u4ef6\uff09\u7f16\u8bd1<\/strong>\uff1afglform [\u7f16\u8bd1\u53c2\u6570] \u5f85\u7f16\u8bd1\u6587\u4ef6\u540d[.per]<br \/>\n<strong>XML \u683c\u5f0f\uff084fd\u6587\u4ef6\uff09\u7f16\u8bd1<\/strong>\uff1agsform [\u7f16\u8bd1\u53c2\u6570] \u5f85\u7f16\u8bd1\u6587\u4ef6\u540d[.4fd]<\/p>\n<p><strong>\u8fde\u7ed3\u6d41\u7a0b<\/strong><\/p>\n<p>\u82e5\u8be5\u7a0b\u5e8f\u4e0d\u9700\u8981\u4f7f\u7528\u5176\u4ed6 4gl \u63d0\u4f9b\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u7565\u8fc7\u8fde\u63a5\u7684\u7a0b\u5e8f\uff0c\u76f4\u63a5\u6267\u884c\u4f5c\u4e1a\u3002<br \/>\n\u82e5\u8be5\u4f5c\u4e1a\u88ab\u5207\u5206\u6210\u8bb8\u591a\u5b50\u7a0b\u5e8f\uff0c\u5219\u53ef\u5728\u6267\u884c\u8fde\u63a5\u524d\uff0c\u5148\u5c06\u5b50\u7a0b\u5e8f\u6253\u5305\u6210\u4e00\u7ec4<strong>\u52a8\u6001\u94fe\u63a5\u51fd\u5f0f\u5e93\uff08Dynamic Link Library\uff09<\/strong>\uff0c\u540e\u7f00\u540d\u4e3a\u00a0.42x\uff0c\u6253\u5305\u5b8c\u6210\u540e\u518d\u4e0e\u539f\u59cb\u4f5c\u4e1a\u8fdb\u884c\u8fde\u63a5\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1119\" height=\"319\" class=\"wp-image-8246\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-193.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-193.png 1119w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-193-768x219.png 768w\" sizes=\"auto, (max-width: 1119px) 100vw, 1119px\" \/><br \/>\n\u8fde\u63a5\u8bed\u6cd5\uff1afgllink -o \u8fde\u7ed3\u540e\u7684\u5b8c\u6574\u6587\u4ef6\u540d \u5f85\u8fde\u7ed3\u6587\u4ef61 [\u5f85\u8fde\u7ed3\u6587\u4ef62] \u2026.<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>fgllink -o test.42x test1.42m test2.42m test3.42m\uff08\u751f\u621042x\u6587\u4ef6\uff09<\/li>\n<li>fgllink -o program.42r test.42x main.42m others.42m\uff08\u751f\u621042r\u6587\u4ef6\uff09<\/li>\n<\/ol>\n<p>\u6ce8\uff1a<strong>\u753b\u9762\u6587\u4ef6\u4e0d\u9700\u8981\u6267\u884c\u94fe\u63a5<\/strong>\u3002<\/p>\n<p><strong>\u6267\u884c\u7a0b\u5e8f<\/strong><\/p>\n<p>\u6267\u884c\u7a0b\u5e8f\u524d\uff0c\u9700\u5148\u5f00\u542f\u4f7f\u7528\u8005\u7aef\u7684 Genero \u684c\u9762\u5ba2\u6237\u7aef\u8f6f\u4ef6\uff08GDC\uff1aGenero Desktop<br \/>\nClient\uff09\uff0c\u4ee5\u4ee4\u4e3b\u673a\u7aef\u7684\u00a0fglrun\u00a0\u53ef\u4ee5\u4e0e\u5ba2\u6237\u7aef\u7684\u300eGDC\u300f\u8fdb\u884c\u6c9f\u901a\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"155\" class=\"wp-image-8247\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-194.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-194.png 994w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-194-768x120.png 768w\" sizes=\"auto, (max-width: 994px) 100vw, 994px\" \/><br \/>\n\u6267\u884c\u6307\u4ee4\uff1afglrun [\u6267\u884c\u53c2\u6570] \u6267\u884c\u6587\u4ef6\u540d[.42r]<\/p>\n<p>\u5f53\u7a0b\u5e8f\u672a\u4f7f\u7528\u5230\u5176\u4ed6\u5916\u90e8\u8d44\u6e90\u65f6\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u6267\u884c\u542b MAIN \u51fd\u6570\u7684\u00a0.42m\u00a0\u6587\u4ef6\u3002<\/p>\n<p>\u7a0b\u5e8f\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c<strong>\u6240\u6709\u903b\u8f91\u8fd0\u7b97\u5747\u4e8e\u4e3b\u673a\u7aef\u6267\u884c<\/strong>\uff0c\u53ea\u6709\u753b\u9762\u5f02\u52a8\u6570\u636e\u4f1a\u4ee5\u8fde\u7eed\u7684 XML \u5c01\u5305\u4f20\u9012\u5230\u5ba2\u6237\u7aef\uff0c\u7ecf\u8fc7 GDC \u89e3\u8bd1\u91cd\u7ec4\u540e\uff0c\u4e0e\u4f7f\u7528\u8005\u8fdb\u884c\u4e92\u52a8\u3002<\/p>\n<p>fglrun -V\u00a0\u53ef\u4ee5\u67e5\u770b fgl \u7684\u7248\u672c\u53f7\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"193\" class=\"wp-image-8248\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-195.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h1>\u7b2c\u4e00\u4e2a\u7a0b\u5e8f Hello World<\/h1>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;hello world!!&#8221;<\/p>\n<p>END MAIN<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"442\" height=\"61\" class=\"wp-image-8249\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-196.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>4GL\u4e2d\u7684\u00a0<strong>\u6ce8\u91ca<\/strong>\uff1a<\/p>\n<ul>\n<li>{ }\u00a0\u53ef\u4ee5\u5c06\u67d0\u4e2a\u8303\u56f4\u505a\u5907\u6ce8<\/li>\n<li>#\u00a0\u6216\u00a0&#8212;\u00a0\u5c06\u67d0\u884c\u505a\u5907\u6ce8<\/li>\n<\/ul>\n<h1>\u53d8\u91cf\u4e0e\u8fd0\u7b97\u7b26<\/h1>\n<p><strong>\u53d8\u91cf\u7c7b\u578b<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"737\" class=\"wp-image-8250\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-197.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u53d8\u91cf\u5b9a\u4e49\uff08DEFINE\uff09<\/h2>\n<p><strong>\u76f4\u63a5\u5b9a\u4e49\u53d8\u91cf<\/strong>\uff1aDEFINE \u53d8\u91cf\u540d \u53d8\u91cf\u7c7b\u578b<br \/>\n<strong>\u5b9a\u4e49\u53d8\u91cf\u5bf9\u5e94\u6570\u636e\u5e93\u5b57\u6bb5<\/strong>\uff1aDEFINE \u53d8\u91cf\u540d LIKE \u6570\u636e\u8868.\u6570\u636e\u5b57\u6bb5<\/p>\n<p># \u76f4\u63a5\u5b9a\u4e49 employee_no \u53d8\u91cf, \u7c7b\u578b\u662f CHAR(10)<\/p>\n<p>DEFINE employee_no CHAR(10)<\/p>\n<p># \u5b9a\u4e49 p_employee_no \u548c\u6570\u636e\u5e93\u5bf9\u5e94<\/p>\n<p>DEFINE p_employee_no LIKE employee_file.employee_no,<\/p>\n<p>p_team_no SMALLINT,<\/p>\n<p>p_join_date, p_birthday DATE<\/p>\n<h2>\u9884\u5b9a\u4e49\u53d8\u91cf<\/h2>\n<p>Genero \u7684\u9884\u5b9a\u4e49\u53d8\u91cf\u53ca\u7528\u9014\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1003\" height=\"608\" class=\"wp-image-8251\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-198.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-198.png 1003w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-198-768x466.png 768w\" sizes=\"auto, (max-width: 1003px) 100vw, 1003px\" \/><\/p>\n<h2>\u53d8\u91cf\u96c6\u5408\uff08RECORD \uff09<\/h2>\n<p><strong>\u76f4\u63a5\u5b9a\u4e49\u53d8\u91cf\u96c6\u5408(Records)<\/strong><br \/>\n\u4f8b\uff1a\u76f4\u63a5\u5b9a\u4e49 rec \u8fd9\u4e2a Records \u4e2d\u7684\u5404\u4e2a\u53d8\u91cf\u7c7b\u578b\u3002<\/p>\n<p>DEFINE rec RECORD # \u5b9a\u4e49rec\u8fd9\u4e2a\u53d8\u91cf,\u5b83\u662f\u4e2aRECORD\uff0c\u662f\u4e2a\u53d8\u91cf\u96c6\u5408<\/p>\n<p>id INTEGER,<\/p>\n<p>name VARCHAR(100),<\/p>\n<p>birth DATE<\/p>\n<p>END RECORD<\/p>\n<p><strong>\u5b9a\u4e49\u53d8\u91cf\u96c6\u5408\u5bf9\u5e94\u6570\u636e\u5e93\u5b57\u6bb5<\/strong><br \/>\n\u4f8b\uff1a\u5b9a\u4e49 cust01 \u8fd9\u4e2a Record \u7684\u53d8\u91cf\u4e0e\u6570\u636e\u5e93\u4e2d\u7684 customer \u8fd9\u4e2a table \u7684\u5b57\u6bb5\u6709\u76f8\u540c\u7684\u540d\u79f0\u53ca\u6570\u636e\u7c7b\u578b\uff0c\u6709\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\u3002<\/p>\n<p>DATABASE example_database<\/p>\n<p>MAIN<\/p>\n<p>DEFINE cust01 RECORD LIKE customer.*<\/p>\n<p>END MAIN<\/p>\n<p>DATABASE example_database<\/p>\n<p>MAIN<\/p>\n<p>DEFINE cust02 RECORD<\/p>\n<p>id LIKE customer.id,<\/p>\n<p>name LIKE customer.name,<\/p>\n<p>birth LIKE customer.birth,<\/p>\n<p>sales LIKE salesman.name<\/p>\n<p>END RECORD<\/p>\n<p>END MAIN<\/p>\n<h2>\u6570\u636e\u7ed3\u6784\uff08TYPE\uff09<\/h2>\n<p><strong>\u4f7f\u7528\u6570\u636e\u7ed3\u6784TYPE<\/strong>\uff1a[PRIVATE|PUBLIC] TYPE \u53d8\u91cf\u540d \u53d8\u91cf\u7c7b\u578b<\/p>\n<p>TYPE customer RECORD<\/p>\n<p>cust_num INTEGER,<\/p>\n<p>cust_name VARCHAR(50),<\/p>\n<p>cust_addr VARCHAR(200)<\/p>\n<p>END RECORD<\/p>\n<p>DEFINE c customer<\/p>\n<p>\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f<\/p>\n<p>PUBLIC TYPE rpt_order RECORD<\/p>\n<p>order_num INTEGER,<\/p>\n<p>store_num INTEGER,<\/p>\n<p>order_date DATE,<\/p>\n<p>fac_code CHAR(3)<\/p>\n<p>END RECORD<\/p>\n<p>MAIN<\/p>\n<p>DEFINE o rpt_order #\u4f7f\u7528\u6570\u636e\u7ed3\u6784 rpt_order \u5e76\u53d6\u540d\u4e3a o<\/p>\n<p>DECLARE order_c CURSOR FOR<\/p>\n<p>SELECT order_num, store_num, order_date, fac_code FROM orders<\/p>\n<p>START REPORT order_list<\/p>\n<p>FOREACH order_c INTO o.*<\/p>\n<p>OUTPUT TO REPORT order_list(o.*)<\/p>\n<p>END FOREACH<\/p>\n<p>FINISH REPORT order_list<\/p>\n<p>END MAIN<\/p>\n<h2>\u53d8\u91cf\u8d4b\u503c\uff08LET\uff09\u3001\u521d\u59cb\u5316\uff08INITIALIZE\uff09<\/h2>\n<p><strong>\u53d8\u91cf\u8d4b\u503c<\/strong>\uff1aLET varibale = expression<\/p>\n<p>MAIN<\/p>\n<p>DEFINE c1, c2 CHAR(10)<\/p>\n<p>LET c1 = &#8220;Genero&#8221;<\/p>\n<p>LET c2 = c1<\/p>\n<p>END MAIN<\/p>\n<p>\u6ce8\uff1a\u82e5\u53d8\u91cf\u5f62\u6001\u4e3a CHAR \u548c VARCHAR \u65f6\uff0c\u6307\u5b9a\u7ed9\u4e88\u7684\u503c\u6709\u5dee\u5f02\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1153\" height=\"292\" class=\"wp-image-8252\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-199.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-199.png 1153w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-199-768x194.png 768w\" sizes=\"auto, (max-width: 1153px) 100vw, 1153px\" \/><\/p>\n<p><strong>\u521d\u59cb\u5316\u53d8\u91cf\u96c6\u5408\uff08INITIALIZE\uff09<\/strong><br \/>\n\u7528\u4e8e\u521d\u59cb\u5316\u4e00\u7ec4 RECORD \u53d8\u91cf\u4e3a NULL\uff0c\u6216\u8005\u662f\u521d\u59cb\u5316\u4e3a\u6570\u636e\u5e93 Table \u7684\u9ed8\u8ba4\u503c\uff1a<\/p>\n<p>INITIALIZE \u53d8\u91cf\u4e32\u884c { LIKE \u5b57\u6bb5\u4e32\u884c | TO NULL }<\/p>\n<p>MAIN<\/p>\n<p>DEFINE cr RECORD LIKE customer.*<\/p>\n<p>INITIALIZE cr.cust_name TO NULL #\u521d\u59cb\u5316cr\u7684cust_name\u5b57\u6bb5\u4e3aNULL<\/p>\n<p>INITIALIZE cr.* LIKE customer.* #\u521d\u59cb\u5316cr\u7684\u53d8\u91cf\u4e3acustomer\u8868\u7684\u503c<\/p>\n<p>END MAIN<\/p>\n<h2>\u5e38\u6570\uff08CONSTANT\uff09<\/h2>\n<p>\u4e00\u4e9b<strong>\u7cfb\u7edf\u9884\u5b9a\u4e49\u5e38\u6570<\/strong>\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1139\" height=\"282\" class=\"wp-image-8253\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-200.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-200.png 1139w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-200-768x190.png 768w\" sizes=\"auto, (max-width: 1139px) 100vw, 1139px\" \/><br \/>\n<strong>\u5b9a\u4e49\u5e38\u6570<\/strong>\uff1aCONSTANT constant_id [data_type] = value<br \/>\n\u6ce8\uff1a\u5b9a\u4e49\u5e38\u6570\u53ef\u4ee5\u4e0d\u6307\u5b9a\u7c7b\u578b\uff1b\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5224\u65ad\u7c7b\u578b\uff0c\u82e5\u6307\u5b9a\u9519\u8bef\u5219\u4f1a\u7ea0\u6b63\u3002<\/p>\n<p>CONSTANT c1 = &#8220;Drink&#8221; &#8212; \u81ea\u884c\u5b9a\u4e49\u4e3a STRING<\/p>\n<p>CONSTANT c2 = 4711 &#8212; \u81ea\u884c\u5b9a\u4e49\u4e3a INTEGER<\/p>\n<p>CONSTANT c3 SMALLINT = 12000 &#8212; \u81ea\u884c\u7ea0\u6b63\u4e3a INTEGER<\/p>\n<p>CONSTANT c4 CHAR(10) = &#8220;abc&#8221; &#8212; \u6309\u7167\u5b9a\u4e49\u4e3a CHAR(10)<\/p>\n<h2>\u8fd0\u7b97\u7b26\uff08operators\uff09<\/h2>\n<p><strong>\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/strong><br \/>\n` <img loading=\"lazy\" decoding=\"async\" width=\"958\" height=\"643\" class=\"wp-image-8254\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-201.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-201.png 958w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-201-768x515.png 768w\" sizes=\"auto, (max-width: 958px) 100vw, 958px\" \/><\/p>\n<p>MAIN<\/p>\n<p>DEFINE a,b INTEGER<\/p>\n<p>LET a = b := 10<\/p>\n<p>DISPLAY a, b &#8212; 10 10<\/p>\n<p>END MAIN<\/p>\n<p>MAIN<\/p>\n<p>DEFINE a,b INTEGER<\/p>\n<p>LET a = b = 10<\/p>\n<p>DISPLAY a,b &#8212; 0 0<\/p>\n<p>END MAIN<\/p>\n<p><strong>\u903b\u8f91\u8fd0\u7b97\u7b26<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1076\" height=\"178\" class=\"wp-image-8255\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-202.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-202.png 1076w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-202-768x127.png 768w\" sizes=\"auto, (max-width: 1076px) 100vw, 1076px\" \/><br \/>\n<strong>\u6570\u503c\u8fd0\u7b97\u7b26<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1073\" height=\"309\" class=\"wp-image-8256\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-203.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-203.png 1073w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-203-768x221.png 768w\" sizes=\"auto, (max-width: 1073px) 100vw, 1073px\" \/><\/p>\n<p>MAIN<\/p>\n<p>DEFINE i,j SMALLINT<\/p>\n<p>LET i = 9<\/p>\n<p>LET j = 2<\/p>\n<p>DISPLAY i + j &#8211;DISPLAY 11<\/p>\n<p>DISPLAY i &#8211; j &#8211;DISPLAY 7<\/p>\n<p>DISPLAY i * j &#8211;DISPLAY 18<\/p>\n<p>DISPLAY i \/ j &#8211;DISPLAY 4.5<\/p>\n<p>DISPLAY j ** i &#8211;DISPLAY 512<\/p>\n<p>DISPLAY i mod j &#8211;DISPLAY 1<\/p>\n<p>END MAIN<\/p>\n<p><strong>\u5b57\u7b26\u4e32\u8fd0\u7b97\u7b26<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1075\" height=\"610\" class=\"wp-image-8257\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-204.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-204.png 1075w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-204-768x436.png 768w\" sizes=\"auto, (max-width: 1075px) 100vw, 1075px\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"908\" height=\"296\" class=\"wp-image-8258\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-205.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-205.png 908w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-205-768x250.png 768w\" sizes=\"auto, (max-width: 908px) 100vw, 908px\" \/><br \/>\n\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f<br \/>\n\u8bf4\u660e\uff1a\u8868\u8fbe\u5f0f[start,end]\u8868\u793a\u4ece\u5b57\u7b26\u4e32\u4e2d\u53d6\u51fa\u5b50\u5b57\u7b26\u4e32\uff0c\u6b64\u8868\u793a\u65b9\u5f0f<strong>\u4ec5\u80fd\u7528\u5728 CHAR \u6216<br \/>\nVARCHAR \u4e0a<\/strong>\uff0c\u82e5\u53d8\u91cf\u578b\u6001\u4e3a\u00a0<strong>STRING<\/strong>\uff0c\u5219\u53c2\u7167\u5982\u4e0b\u8303\u4f8b\uff1a<\/p>\n<p>MAIN<\/p>\n<p>DEFINE i,j STRING<\/p>\n<p>LET i = &#8220;T100&#8221;<\/p>\n<p>LET j = i.subString(1, 4)<\/p>\n<p>DISPLAY j &#8211;T100<\/p>\n<p>DISPLAY i.subString(1, 4) &#8211;T100<\/p>\n<p>END MAIN<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"918\" height=\"294\" class=\"wp-image-8259\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-206.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-206.png 918w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-206-768x246.png 768w\" sizes=\"auto, (max-width: 918px) 100vw, 918px\" \/><br \/>\n<strong>\u5173\u8054\u8bed\u6cd5(Associative syntax)<\/strong>\u00a0\u8fd0\u7b97\u7b26<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"894\" height=\"182\" class=\"wp-image-8260\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-207.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-207.png 894w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-207-768x156.png 768w\" sizes=\"auto, (max-width: 894px) 100vw, 894px\" \/><br \/>\n<strong>\u65e5\u671f\u8fd0\u7b97\u7b26<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"882\" height=\"473\" class=\"wp-image-8261\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-208.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-208.png 882w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-208-768x412.png 768w\" sizes=\"auto, (max-width: 882px) 100vw, 882px\" \/><br \/>\n<strong>\u5bf9\u8bdd\u6846\u5904\u7406 (Dialog handling)\u8fd0\u7b97\u7b26<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1009\" height=\"367\" class=\"wp-image-8262\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-209.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-209.png 1009w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-209-768x279.png 768w\" sizes=\"auto, (max-width: 1009px) 100vw, 1009px\" \/><\/p>\n<h2>\u5168\u5c40\u53d8\u91cf\uff08GLOBALS\uff09<\/h2>\n<p><strong>\u8bed\u6cd5\u4e00\uff1a\u76f4\u63a5\u5199\u5b9a GLOBALS \u533a\u5757<\/strong><\/p>\n<p>GLOBALS<\/p>\n<p>declaration-statement<\/p>\n<p>[,&#8230;]<\/p>\n<p>END GLOBALS<\/p>\n<p><strong>\u8bed\u6cd5\u4e8c\uff1a\u8bfb\u5165\u5df2\u5199\u597d\u7684\u5171\u540c\u914d\u7f6e\u6587\u4ef6\uff08\u5916\u90e8\u6863\u6848\uff09<\/strong><\/p>\n<p>GLOBALS &#8220;filename&#8221;<\/p>\n<h2>\u53d8\u6570\u7684\u751f\u547d\u5468\u671f\uff08LOCALE\u3001MODULE\u3001GLOBAL\uff09<\/h2>\n<p><strong>LOCAL\u53d8\u91cf(Local Variables)<\/strong><\/p>\n<ul>\n<li>\u5b9a\u4e49\u4f4d\u7f6e\uff1a\u5b9a\u4e49\u5728 Module \u4e2d\u7684\u51fd\u5f0f\u91cc (MAIN\u3001FUNCTION \u7b49)<\/li>\n<li>\u751f\u547d\u5468\u671f\uff1a\u53ea\u5c5e\u4e8e\u8be5\u5b9a\u4e49\u7684\u51fd\u5f0f\u4f7f\u7528\uff0c\u79bb\u5f00\u6b64\u51fd\u5f0f\u5373\u4e0d\u80fd\u518d\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p><strong>MODULE\u53d8\u91cf(Module Variables)<\/strong><\/p>\n<ul>\n<li>\u5b9a\u4e49\u4f4d\u7f6e\uff1aModule \u4e2d\uff0c\u4f46\u4e0d\u88ab\u4efb\u4f55\u7684\u51fd\u5f0f\u5305\u56f4\u3002<\/li>\n<li>\u751f\u547d\u5468\u671f\uff1a\u4e3a\u8be5 Module \u4e2d\u7684\u5171\u4eab\u53d8\u6570\u3002<\/li>\n<\/ul>\n<p><strong>GLOBAL\u53d8\u91cf(Global Variables)<\/strong><\/p>\n<ul>\n<li>\u5b9a\u4e49\u4f4d\u7f6e\uff1a\u7531 GLOBALS \u53ca END GLOBALS \u6240\u5305\u56f4\u7684\u53d8\u6570\u3002<\/li>\n<li>\u751f\u547d\u5468\u671f\uff1a\u4f7f\u7528\u7684\u6240\u6709 MODULE \u7684\u5171\u4eab\u53d8\u91cf\u3002<\/li>\n<\/ul>\n<p>SCHEMA ds<\/p>\n<p>GLOBALS<\/p>\n<p>DEFINE g_employee CHAR(10) &#8211;GLOBAL<\/p>\n<p>END GLOBALS<\/p>\n<p>DEFINE g_tty CHAR(32) &#8211;MODULE<\/p>\n<p>MAIN<\/p>\n<p>DEFINE answer CHAR(1) &#8211;LOCAL<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION ins_employee()<\/p>\n<p>DEFINE flag CHAR(1), &#8211;LOCAL<\/p>\n<p>change SMALLINT &#8211;LOCAL<\/p>\n<p>END FUNCTION<\/p>\n<h2>\u63a7\u5236\u8f93\u51fa\u683c\u5f0f\uff08USING\uff09<\/h2>\n<p>\u9488\u5bf9\u00a0<strong>\u6570\u503c\u6216\u65e5\u671f<\/strong>\u00a0\u8bbe\u5b9a\u5176\u00a0<strong>\u663e\u793a\u683c\u5f0f<\/strong>\uff0c\u8bbe\u5b9a\u65f6\u6ce8\u610f\u00a0<strong>\u6ea2\u51fa(overflow)<\/strong>\u00a0\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>\u6570\u503c\u683c\u5f0f\u6807\u5fd7<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"998\" height=\"431\" class=\"wp-image-8263\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-210.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-210.png 998w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-210-768x332.png 768w\" sizes=\"auto, (max-width: 998px) 100vw, 998px\" \/><br \/>\n<strong>\u65e5\u671f\u683c\u5f0f\u6807\u5fd7<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"999\" height=\"218\" class=\"wp-image-8264\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-211.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-211.png 999w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-211-768x168.png 768w\" sizes=\"auto, (max-width: 999px) 100vw, 999px\" \/><br \/>\n\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f<\/p>\n<p>MAIN<\/p>\n<p>DEFINE i,j SMALLINT<\/p>\n<p>LET i = 12345<\/p>\n<p>LET j = -12345<\/p>\n<p>DISPLAY i<\/p>\n<p>DISPLAY j<\/p>\n<p>DISPLAY i USING&#8221;*******&#8221;<\/p>\n<p>DISPLAY j USING&#8221;*******&#8221;<\/p>\n<p>DISPLAY i USING&#8221;&amp;&amp;&amp;&amp;&amp;&amp;&amp;&#8221;<\/p>\n<p>DISPLAY j USING&#8221;&amp;&amp;&amp;&amp;&amp;&amp;&amp;&#8221;<\/p>\n<p>DISPLAY i USING&#8221;#######&#8221;<\/p>\n<p>DISPLAY j USING&#8221;#######&#8221;<\/p>\n<p>DISPLAY i USING&#8221;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&#8221;<\/p>\n<p>DISPLAY j USING&#8221;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&#8221;<\/p>\n<p>DISPLAY i USING&#8221;&#8212;&#8212;-&#8221;<\/p>\n<p>DISPLAY j USING&#8221;&#8212;&#8212;-&#8221;<\/p>\n<p>DISPLAY i USING&#8221;+++++++&#8221;<\/p>\n<p>DISPLAY j USING&#8221;+++++++&#8221;<\/p>\n<p>DISPLAY i USING&#8221;$$$$$$$&#8221;<\/p>\n<p>DISPLAY j USING&#8221;$$$$$$$&#8221;<\/p>\n<p>DISPLAY i USING&#8221;(######)&#8221;<\/p>\n<p>DISPLAY j USING&#8221;(######)&#8221;<\/p>\n<p>DISPLAY i USING&#8221;###,###.&amp;&amp;&#8221;<\/p>\n<p>DISPLAY j USING&#8221;###,###.&amp;&amp;&#8221;<\/p>\n<p>END MAIN<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"439\" height=\"398\" class=\"wp-image-8265\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-212.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>MAIN<\/p>\n<p>DISPLAY TODAY<\/p>\n<p>DISPLAY TODAY USING &#8220;yyyy-mm-dd&#8221;<\/p>\n<p>DISPLAY TODAY USING &#8220;yy-mm-dd&#8221;<\/p>\n<p>DISPLAY TODAY USING &#8220;yy-mmm-ddd&#8221;<\/p>\n<p>END MAIN<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"428\" height=\"99\" class=\"wp-image-8266\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-213.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h1>\u51fd\u6570\u3001\u6d41\u7a0b\u63a7\u5236<\/h1>\n<h2>IMPORT \u5f15\u5165\u94fe\u63a5\u5e93\uff08\u8df3\u8fc7\uff09<\/h2>\n<h2>SCHEMA \/ DATABASE \u58f0\u660e\u6570\u636e\u5e93<\/h2>\n<p>\u4f7f\u7528\u00a0SCHEMA\u00a0\u58f0\u660e\u6570\u636e\u5e93\u65f6\uff0c\u53ea\u4f1a\u5728\u7f16\u8bd1\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u5230\u58f0\u660e\u7684\u529f\u80fd\uff0c\u6267\u884c\u7a0b\u5e8f\u65f6\u5e76\u4e0d\u4f1a\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u5b9e\u8d28\u8054\u673a\u3002<br \/>\n\u4f7f\u7528\u00a0DATABASE\u00a0\u58f0\u660e\u6570\u636e\u5e93\u65f6\uff0c\u7f16\u8bd1\u65f6\u529f\u80fd\u76f8\u540c\uff0c\u4f46\u6267\u884c\u65f6\u5373\u4f1a\u94fe\u63a5\u6570\u636e\u5e93\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"755\" height=\"178\" class=\"wp-image-8267\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-214.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>SCHEMA ds #\u58f0\u660e\u6570\u636e\u5e93ds<\/p>\n<p>MAIN<\/p>\n<p>DEFINE lc_zz01 LIKE zz_file.zz01<\/p>\n<p>SELECT zz01 INTO lc_zz01 FROM zz_file WHERE zz01=&#8217;tiptop&#8217;<\/p>\n<p>END MAIN<\/p>\n<p>\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f<br \/>\n\u6ce8\uff1a\u4f7f\u7528\u00a0SCHEMA\u00a0\u6307\u4ee4\uff0c\u56e0\u6b64\u5e76\u672a\u4e8e\u5b9e\u9645\u767b\u5165\u6570\u636e\u5e93\uff0c\u6267\u884c\u65f6\u56de\u62a5\u5982\u4e0b\uff1a<\/p>\n<p>Program stopped at &#8216;test_schema.4gl&#8217;, line number 5.<\/p>\n<p>SQL statement error number -1803 (-1). Connection does not exist.<\/p>\n<h2>MAIN \u51fd\u6570\u4e0e\u8bbe\u5b9a\u533a\u5757<\/h2>\n<p>MAIN \u51fd\u6570\u662f\u7a0b\u5e8f\u6267\u884c\u7684\u5165\u53e3\uff0c\u4e00\u4e2a\u5b8c\u6574\u53ef\u6267\u884c\u7684\u7a0b\u5e8f\u53ea\u80fd\u6709\u4e00\u4e2a MAIN \u51fd\u6570\u3002<\/p>\n<p>\u6700\u7b80\u5355\u7684\u5b8c\u6574\u4f5c\u4e1a\uff1a<\/p>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;hello world!&#8221;<\/p>\n<p>END MAIN<\/p>\n<p>MAIN \u51fd\u6570\u53ef\u7b80\u5355\u5199\u6210\u5982\u4e0a\uff0c\u4e5f\u53ef\u589e\u52a0\u4e00\u4e9b\u00a0<strong>\u8bbe\u5b9a\u533a\u5757<\/strong>\u3002<\/p>\n<p><strong>DEFER \u8bbe\u5b9a<\/strong>\u00a0\u53ef\u5b9a\u4e49\u7a0b\u5e8f\u662f\u5426\u8981\u62e6\u622a\u300e\u5f53\u4f7f\u7528\u8005\u6309\u4e0b\u4e2d\u65ad\uff08interrupt\uff09\u6216\u79bb\u5f00\uff08quit\uff09\u952e\u300f\u65f6\u6240\u9001\u51fa\u7684\u7cfb\u7edf\u8baf\u53f7\uff1aDEFER {INTERRUPT | QUIT}<\/p>\n<p><strong>OPTIONS \u8bbe\u5b9a<\/strong>\u00a0\u53ef\u53d8\u66f4\u7cfb\u7edf\u9ed8\u8ba4\u7684\u9009\u9879<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"1026\" height=\"280\" class=\"wp-image-8268\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-215.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-215.png 1026w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-215-768x210.png 768w\" sizes=\"auto, (max-width: 1026px) 100vw, 1026px\" \/><br \/>\n<strong>Exceptions \u8bbe\u5b9a<\/strong>\u00a0\u5b9a\u4e49\u5f53\u9047\u5230 SQL \u9519\u8bef\u65f6\uff0c\u7cfb\u7edf\u8981\u91c7\u4ec0\u4e48\u64cd\u4f5c\u3002<br \/>\n\u8bed\u6cd5\u683c\u5f0f\uff1aWHENEVER [ANY] ERROR { CONTINUE | STOP | CALL function | GOTO label }<\/p>\n<p>\u590d\u6742\u7684 MAIN \u51fd\u6570\u793a\u4f8b\uff1a<\/p>\n<p>MAIN<\/p>\n<p>OPTIONS #\u6539\u53d8\u4e00\u4e9b\u7cfb\u7edf\u9ed8\u8ba4\u503c<\/p>\n<p>INPUT NO WRAP, #\u8f93\u5165\u7684\u65b9\u5f0f\uff1a\u4e0d\u6253\u8f6c<\/p>\n<p># FORM LINE FIRST + 2, #\u753b\u9762\u5f00\u59cb\u7684\u4f4d\u7f6e<\/p>\n<p># MESSAGE LINE LAST, #\u8baf\u606f\u663e\u793a\u7684\u4f4d\u7f6e<\/p>\n<p># PROMPT LINE LAST, #\u63d0\u793a\u8baf\u606f\u7684\u4f4d\u7f6e<\/p>\n<p>FIELD ORDER FORM #\u6574\u4e2a\u753b\u9762\u4f1a\u4f9d\u7167 p_per \u6240\u8bbe\u5b9a\u7684\u5b57\u6bb5\u987a\u5e8f<\/p>\n<p>DEFER INTERRUPT<\/p>\n<p>&nbsp;<\/p>\n<p>WHENEVER ERROR STOP #\u5f53\u53d1\u751f SQL Error \u65f6\u5373\u505c\u6b62\u7a0b\u5e8f<\/p>\n<p>&nbsp;<\/p>\n<p>DISPLAY \u201cChange Exception!\u201d<\/p>\n<p>&nbsp;<\/p>\n<p>WHENEVER ERROR CALL chk_err #\u6b64\u5904\u7684 CALL \u662f\u6ca1\u6709\u62ec\u53f7\u7684<\/p>\n<p>&nbsp;<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION chk_err( )<\/p>\n<p>DISPLAY \u201cError Happened!\u201d<\/p>\n<p>END FUNCTION<\/p>\n<h2>FUNCTION \u51fd\u6570<\/h2>\n<p>\u8bed\u6cd5\uff1a[PUBLIC | PRIVATE ] FUNCTION function_name( [arg [ , \u2026 ] ] )<\/p>\n<p>\u5f53\u8bbe\u5b9a\u4e3a\u00a0PRIVATE\u00a0\u65f6\uff0c\u53ea\u9650\u672c 4gl \u6587\u4ef6\u5185\u4f7f\u7528\uff1b\u8fde\u7ed3\u65f6\u5728 42x \u6216 42r \u5185\u65e0\u6cd5\u770b\u5230\u8be5\u51fd\u6570\u3002<\/p>\n<p>MAIN<\/p>\n<p>CALL say_hello_public()<\/p>\n<p>CALL say_hello_private()<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION say_hello_public()<\/p>\n<p>DISPLAY &#8220;Hello, world!&#8221;<\/p>\n<p>END FUNCTION<\/p>\n<p>PRIVATE FUNCTION say_hello_private()<\/p>\n<p>DISPLAY &#8220;Hello, Private!&#8221;<\/p>\n<p>END FUNCTION<\/p>\n<p>CALL\u00a0\u6267\u884c\u6307\u5b9a\u7684\u51fd\u6570\uff0c\u82e5\u6709\u56de\u4f20\u503c\uff0c\u4ee5\u00a0RETURNING\u00a0\u63a5\u56de\u3002<br \/>\n\u8bed\u6cd5\u683c\u5f0f\uff1aCALL function ( [ parameter [,&#8230;] ] ) [ RETURNING variable [,&#8230;] ]<\/p>\n<p>RETURN\u00a0\u8fd4\u56de\u51fd\u6570\u6240\u9700\u7684\u53d8\u91cf\u503c\uff0c\u5e76\u505c\u6b62\u6b64\u51fd\u5f0f\u7684\u6267\u884c\u3002<\/p>\n<p><strong>\u56de\u4f20\u5355\u4e00\u503c<\/strong>\uff1a<\/p>\n<p>MAIN<\/p>\n<p>DEFINE var1 CHAR(10)<\/p>\n<p>DEFINE var2 CHAR(2)<\/p>\n<p>LET var1 = foo()<\/p>\n<p>DISPLAY &#8220;var1 = &#8221; || var1 &#8212; var1 = Hello<\/p>\n<p>CALL foo() RETURNING var2<\/p>\n<p>DISPLAY &#8220;var2 = &#8221; || var2 &#8212; var2 = He<\/p>\n<p>DISPLAY &#8220;foo() = &#8221; foo() &#8212; foo() = Hello<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION foo()<\/p>\n<p>RETURN &#8220;Hello&#8221;<\/p>\n<p>END FUNCTION<\/p>\n<p><strong>\u56de\u4f20\u5355\u4e00\u503c\uff08\u5e03\u5c14\uff09\uff1a<\/strong><\/p>\n<p>MAIN<\/p>\n<p>IF foo() THEN<\/p>\n<p>DISPLAY &#8220;Choice is OK!\u201d<\/p>\n<p>END IF<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION foo()<\/p>\n<p>RETURN TRUE<\/p>\n<p>END FUNCTION<\/p>\n<p><strong>\u56de\u4f20\u591a\u4e2a\u503c\uff1a<\/strong>\u00a0\u53ef\u7528\u00a0RETURNING\u00a0\u63a5\u6536<\/p>\n<p>MAIN<\/p>\n<p>DEFINE var1 CHAR(15)<\/p>\n<p>DEFINE var2 CHAR(15)<\/p>\n<p>CALL foo() RETURNING var1, var2<\/p>\n<p>DISPLAY var1, var2<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION foo()<\/p>\n<p>DEFINE r1 CHAR(15)<\/p>\n<p>DEFINE r2 CHAR(15)<\/p>\n<p>LET r1 = &#8220;return value 1&#8221;<\/p>\n<p>LET r2 = &#8220;return value 2&#8221;<\/p>\n<p>RETURN r1, r2<\/p>\n<p>END FUNCTION<\/p>\n<p><strong>\u6587\u4ef6\u4e4b\u95f4\u4e92\u76f8\u8c03\u7528<\/strong>\uff1atest1.4gl \u8c03\u7528 test2.4gl \u4e2d\u7684\u51fd\u6570\uff0c\u5e76\u4e14\u7528\u547d\u4ee4\u884c\u6267\u884c test3.4gl<\/p>\n<p>test1.4gl<\/p>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;MAIN FUNCTION&#8221;<\/p>\n<p>CALL a1()<\/p>\n<p>CALL a2()<\/p>\n<p>RUN &#8220;fglrun test3&#8221; # \u5229\u7528RUN\u6267\u884c\u547d\u4ee4\u884c<\/p>\n<p>END MAIN<\/p>\n<p>FUNCTION a1()<\/p>\n<p>DISPLAY &#8220;SUB FUNCTION a1()&#8221;<\/p>\n<p>END FUNCTION<\/p>\n<p>\u4ee5\u4e0a\u7a0b\u5e8f\u6bb5\u4f1a\u547c\u53eb\u53e6\u5916\u4e24\u4e2a Function\uff0c\u5e76\u4e14\u5229\u7528 RUN \u6307\u4ee4\u6267\u884c\u4e00\u9053 unix \u6307\u4ee4<\/p>\n<p>test2.4gl<\/p>\n<p>FUNCTION a2()<\/p>\n<p># a2 function<\/p>\n<p>DISPLAY &#8220;SUB FUNCTION a2()&#8221;<\/p>\n<p>END FUNCTION<\/p>\n<p>test3.4gl<\/p>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;This is test3.4gl&#8221;<\/p>\n<p>END MAIN<\/p>\n<h2>\u62a5\u8868\u7ed3\u6784 REPORT \u51fd\u6570\uff08\u8df3\u8fc7\uff09<\/h2>\n<p>\u8fd9\u662f\u4e00\u79cd\u4e13\u95e8\u7528\u6765\u8bbe\u5b9a\u62a5\u8868\u6253\u5370\u683c\u5f0f\u7684\u51fd\u6570\uff0c\u540e\u7eed\u7ae0\u8282\u6709\u8be6\u7ec6\u7684\u4ecb\u7ecd\u3002<\/p>\n<h2>IF<\/h2>\n<p>\u8bed\u6cd5\uff1a\uff1f\uff1f\uff1f\uff1f\uff1f\uff1fMATCHES \u652f\u6301\u6b63\u5219\u8868\u8fbe\u5f0f\uff1f<\/p>\n<p>IF condition THEN<\/p>\n<p>statement<\/p>\n<p>[&#8230;]<\/p>\n<p>ELSE<\/p>\n<p>statement<\/p>\n<p>[&#8230;]<\/p>\n<p>END IF<\/p>\n<p>MAIN<\/p>\n<p>DEFINE name CHAR(20)<\/p>\n<p>LET name = &#8220;John Smith&#8221;<\/p>\n<p>IF name MATCHES &#8220;John*&#8221; THEN<\/p>\n<p>DISPLAY &#8220;The first name is too common to be displayed.&#8221;<\/p>\n<p>IF name MATCHES &#8220;*Smith&#8221; THEN<\/p>\n<p>DISPLAY &#8220;Even the last name is too common to be displayed.&#8221;<\/p>\n<p>END IF<\/p>\n<p>ELSE<\/p>\n<p>DISPLAY &#8220;The name is &#8221; , name , &#8220;.&#8221;<\/p>\n<p>END IF<\/p>\n<p>END MAIN<\/p>\n<h2>CASE<\/h2>\n<p><strong>\u8bed\u6cd51\u683c\u5f0f\uff1a\u9002\u7528\u4e8e\u5224\u65ad\u5f0f\u6bd4\u8f83\u7b80\u5355\uff0c\u5982\u53ea\u9700\u5224\u65ad1\u4e2a\u6570\u5b57<\/strong><\/p>\n<p>CASE expression-1<\/p>\n<p>WHEN expression-2<\/p>\n<p>{ statement | EXIT CASE }<\/p>\n<p>[&#8230;]<\/p>\n<p>OTHERWISE<\/p>\n<p>{ statement | EXIT CASE }<\/p>\n<p>[&#8230;]<\/p>\n<p>END CASE<\/p>\n<p>MAIN<\/p>\n<p>DEFINE v CHAR(10)<\/p>\n<p>LET v = &#8220;C1&#8221;<\/p>\n<p>CASE v<\/p>\n<p>WHEN &#8220;C1&#8221;<\/p>\n<p>DISPLAY &#8220;Value is C1&#8221;<\/p>\n<p>WHEN &#8220;C2&#8221;<\/p>\n<p>DISPLAY &#8220;Value is C2&#8221;<\/p>\n<p>WHEN &#8220;C3&#8221;<\/p>\n<p>DISPLAY &#8220;Value is C3&#8221;<\/p>\n<p>OTHERWISE<\/p>\n<p>DISPLAY &#8220;Unexpected value&#8221;<\/p>\n<p>END CASE<\/p>\n<p>END MAIN<\/p>\n<p><strong>\u8bed\u6cd52\u683c\u5f0f\uff1a\u9002\u7528\u4e8e\u5224\u65ad\u5f0f\u8f83\u590d\u6742<\/strong><\/p>\n<p>CASE<\/p>\n<p>WHEN boolean-expression<\/p>\n<p>{ statement | EXIT CASE }<\/p>\n<p>[&#8230;]<\/p>\n<p>OTHERWISE<\/p>\n<p>{ statement | EXIT CASE }<\/p>\n<p>[&#8230;]<\/p>\n<p>END CASE<\/p>\n<p>MAIN<\/p>\n<p>DEFINE v CHAR(10)<\/p>\n<p>LET v = &#8220;C1&#8243;<\/p>\n<p>CASE<\/p>\n<p>WHEN ( v=&#8221;C1&#8243; OR v=&#8221;C2&#8221; )<\/p>\n<p>DISPLAY &#8220;Value is either C1 or C2&#8243;<\/p>\n<p>WHEN ( v=&#8221;C3&#8243; OR v=&#8221;C4&#8221; )<\/p>\n<p>DISPLAY &#8220;Value is either C3 or C4&#8221;<\/p>\n<p>OTHERWISE<\/p>\n<p>DISPLAY &#8220;Unexpected value&#8221;<\/p>\n<p>END CASE<\/p>\n<p>END MAIN<\/p>\n<p>\u8bed\u6cd52\u6ce8\u610f\uff1a\u82e5\u6709\u4e24\u79cd\u60c5\u51b5\u6210\u7acb\uff0c\u7cfb\u7edf\u4ec5\u4f1a\u8d70\u7b2c\u4e00\u6761\u7b26\u5408\u6761\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n<p>\u4e0b\u5217\u4ee3\u7801\u53ea\u4f1a\u663e\u793a\uff1aa is ok<\/p>\n<p>MAIN<\/p>\n<p>DEFINE a,b INTEGER<\/p>\n<p>LET a = b := 10<\/p>\n<p>CASE<\/p>\n<p>WHEN a = 10 DISPLAY &#8221; a is ok &#8221;<\/p>\n<p>WHEN b = 20 DISPLAY &#8221; b is ok &#8221;<\/p>\n<p>OTHERWISE DISPLAY &#8221; nothing is ok &#8221;<\/p>\n<p>END CASE<\/p>\n<p>END MAIN<\/p>\n<h2>FOR<\/h2>\n<p>\u8bed\u6cd5\uff1a\u9ed8\u8ba4\u60c5\u51b5\u00a0STEP = 1<\/p>\n<p>FOR counter = a TO b [ STEP value ]<\/p>\n<p>statement<\/p>\n<p>[&#8230;]<\/p>\n<p>END FOR<\/p>\n<p>MAIN<\/p>\n<p>DEFINE i, i_min, i_max INTEGER<\/p>\n<p>LET i_min = 1<\/p>\n<p>LET i_max = 10<\/p>\n<p>&nbsp;<\/p>\n<p>DISPLAY &#8220;Look how well I can count from &#8221; , i_min , &#8221; to &#8221; , i_max<\/p>\n<p>DISPLAY &#8220;I can count forwards&#8230;&#8221;<\/p>\n<p>&nbsp;<\/p>\n<p>FOR i = i_min TO i_max # \u6b63\u5e8f<\/p>\n<p>DISPLAY i<\/p>\n<p>END FOR<\/p>\n<p>&nbsp;<\/p>\n<p>DISPLAY &#8220;&#8230; and backwards!&#8221;<\/p>\n<p>&nbsp;<\/p>\n<p>FOR i = i_max TO i_min STEP -1 #\u53cd\u5e8f<\/p>\n<p>DISPLAY i<\/p>\n<p>END FOR<\/p>\n<p>END MAIN<\/p>\n<h2>WHILE<\/h2>\n<p>\u8bed\u6cd5\uff1a\u6267\u884c\u7a0b\u5e8f\u76f4\u5230\u6761\u4ef6\u4e0d\u6210\u7acb\u4e3a\u6b62\u3002<\/p>\n<p>WHILE b-expression<\/p>\n<p>statement<\/p>\n<p>[&#8230;]<\/p>\n<p>END WHILE<\/p>\n<p>MAIN<\/p>\n<p>DEFINE a,b INTEGER<\/p>\n<p>LET a = 20<\/p>\n<p>LET b = 1<\/p>\n<p>&nbsp;<\/p>\n<p>WHILE a &gt; b<\/p>\n<p>DISPLAY a , &#8221; &gt; &#8221; , b<\/p>\n<p>LET b = b + 1<\/p>\n<p>END WHILE<\/p>\n<p>&nbsp;<\/p>\n<p>END MAIN<\/p>\n<h2>CONTINUE<\/h2>\n<p>\u8bed\u6cd5\uff1a\u8df3\u51fa\u672c\u6b21\u5faa\u73af\u3002<\/p>\n<p>CONTINUE { FOR | FOREACH | MENU | CONSTRUCT | INPUT | WHILE }<\/p>\n<p>MAIN<\/p>\n<p>DEFINE i INTEGER<\/p>\n<p>LET i = 0<\/p>\n<p>WHILE i &lt; 5<\/p>\n<p>LET i = i + 1<\/p>\n<p>DISPLAY &#8220;i = &#8221; || i<\/p>\n<p>CONTINUE WHILE<\/p>\n<p>DISPLAY &#8220;This will never be displayed !&#8221;<\/p>\n<p>END WHILE<\/p>\n<p>END MAIN<\/p>\n<h2>EXIT<\/h2>\n<p>\u8bed\u6cd5\uff1a\u79bb\u5f00\u63a7\u5236\u6bb5\u3002<\/p>\n<p>EXIT { CASE | FOR | MENU | CONSTRUCT | FOREACH | REPORT | DISPLAY | INPUT | WHILE | PROGRAM }<\/p>\n<p>MAIN<\/p>\n<p>DEFINE i INTEGER<\/p>\n<p>LET i = 0<\/p>\n<p>&nbsp;<\/p>\n<p>WHILE TRUE<\/p>\n<p>DISPLAY &#8220;This is an infinite loop. How would you get out of here ?&#8221;<\/p>\n<p>LET i = i + 1<\/p>\n<p>IF i = 100 THEN<\/p>\n<p>EXIT WHILE<\/p>\n<p>END IF<\/p>\n<p>END WHILE<\/p>\n<p>&nbsp;<\/p>\n<p>DISPLAY &#8220;Well done.&#8221;<\/p>\n<p>END MAIN<\/p>\n<h2>TRY\u2026CATCH<\/h2>\n<p>\u9488\u5bf9\u91cd\u8981 SQL \u6307\u4ee4\u53ef\u4ee5\u9884\u5148\u8bbe\u7f6e\u4e13\u7528\u7684\u9519\u8bef\u5904\u7406\u6307\u4ee4\u3002<\/p>\n<p>\u8bed\u6cd5\uff1a<\/p>\n<p>TRY<\/p>\n<p>[\u5f85\u4fa6\u6d4b\u662f\u5426\u4f1a\u53d1\u751f\u95ee\u9898\u7684\u7a0b\u5e8f\u6bb5\u843d]<\/p>\n<p>CATCH<\/p>\n<p>[\u5904\u7406\u95ee\u9898\u6216\u56de\u62a5\u8baf\u606f\u7684\u7a0b\u5e8f\u6bb5\u843d]<\/p>\n<p>END TRY<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p>MAIN<\/p>\n<p>LET lc_a = ARG_VAL(1)<\/p>\n<p>TRY<\/p>\n<p>DATABASE lc_a<\/p>\n<p>CATCH<\/p>\n<p>DISPLAY lc_a,&#8217; not in fglprofile, number:&#8217;, SQLCA.SQLCODE<\/p>\n<p>END TRY<\/p>\n<p>END MAIN<\/p>\n<h2>SLEEP<\/h2>\n<p>\u8bed\u6cd5\uff1a\u7a0b\u5e8f\u4f9d\u6307\u5b9a\u79d2\u6570\u6682\u505c\u3002<\/p>\n<p>SLEEP seconds<\/p>\n<p>\u6ce8\u610f\uff1a\u5982\u679c seconds &lt; 0 \u6216 seconds IS NULL\uff0c\u5219\u7a0b\u5e8f\u4e0d\u4f1a\u505c\u6b62\u3002<\/p>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;Please wait 5 seconds&#8230;&#8221;<\/p>\n<p>SLEEP 5 #\u6682\u505c5\u79d2<\/p>\n<p>DISPLAY &#8220;Thank you.&#8221;<\/p>\n<p>END MAIN<\/p>\n<h2>LABEL \u548c GOTO\uff08\uff09<\/h2>\n<p>\u4e3a\u4e86\u7a0b\u5e8f\u7684\u6613\u8bfb\u6027\u548c\u7ed3\u6784\u6027\uff0c\u8bf7\u4e0d\u8981\u4f7f\u7528\u8be5\u6307\u4ee4\u3002<\/p>\n<p>MAIN<\/p>\n<p>DISPLAY &#8220;Before GOTO&#8221;<\/p>\n<p>GOTO: label_id1<\/p>\n<p>DISPLAY &#8220;Never Been Displayed&#8221;<\/p>\n<p>LABEL label_id1:<\/p>\n<p>DISPLAY &#8220;After GOTO&#8221;<\/p>\n<p>END MAIN<\/p>\n<h2>\u5e38\u7528\u7684\u5185\u7f6e\u51fd\u6570\uff08built-in functions\uff09<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"978\" height=\"516\" class=\"wp-image-8269\" src=\"http:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-216.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" srcset=\"https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-216.png 978w, https:\/\/www.hefeiyu.com\/wp-content\/uploads\/2021\/09\/unnamed-file-216-768x405.png 768w\" sizes=\"auto, (max-width: 978px) 100vw, 978px\" \/><\/p>\n<p>\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faa<a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u00a0CC 4.0 BY-SA\u00a0<\/a>\u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u548c\u672c\u58f0\u660e\u3002<\/p>\n<p>\u672c\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/blog.csdn.net\/weixin_43734095\/article\/details\/112761278\">https:\/\/blog.csdn.net\/weixin_43734095\/article\/details\/112761278<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/www.hefeiyu.com\">\u8d6b\u975e\u57df<\/a> &raquo; <a href=\"https:\/\/www.hefeiyu.com\/?p=8242\">\u3010\u5b9e\u4e60\u4e4bT100\u5f00\u53d1\u3011Genero FGL (TIPTOP4GL) \u5b66\u4e60\u7b14\u8bb01<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Genero FGL \u5b66\u4e60 &nbsp; Genero FGL \u7b80\u4ecb Genero FGL \u5f00\u53d1\uff08\u7f16\u8bd1\u3001\u8fde\u63a5\u3001\u6267\u884c\uff09 \u7b2c\u4e00\u4e2a\u7a0b\u5e8f Hello World \u53d8\u91cf\u4e0e\u8fd0\u7b97\u7b26 \u53d8\u91cf\u5b9a\u4e49\uff08DEFINE\uff09 \u9884\u5b9a\u4e49\u53d8\u91cf \u53d8\u91cf\u96c6\u5408\uff08RECORD \uff09 \u6570\u636e\u7ed3\u6784\uff08TYP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[487,490],"tags":[171,470,1008],"class_list":["post-8242","post","type-post","status-publish","format-standard","hentry","category-t100-erp","category-490","tag-fgl","tag-genero","tag-1008"],"_links":{"self":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/8242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8242"}],"version-history":[{"count":2,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/8242\/revisions"}],"predecessor-version":[{"id":8291,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/8242\/revisions\/8291"}],"wp:attachment":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}