{"id":2010,"date":"2026-07-19T08:26:15","date_gmt":"2026-07-19T00:26:15","guid":{"rendered":"http:\/\/www.dxQerp.com\/?p=2010"},"modified":"2026-07-19T08:31:29","modified_gmt":"2026-07-19T00:31:29","slug":"dbase-2019-%e7%9b%b8%e5%90%8c-%e7%9a%84-function-%e7%9a%84%e5%90%8d%e7%a8%b1-%e5%9c%a8-%e4%b8%8d%e5%90%8c%e7%9a%84%e5%9c%b0%e6%96%b9-%e5%87%ba%e7%8f%be-%e6%9c%83%e5%87%ba%e7%8f%be-%e6%80%8e","status":"publish","type":"post","link":"http:\/\/www.dxQerp.com\/?p=2010","title":{"rendered":"dbase 2019 \u76f8\u540c \u7684 funCTION \u7684\u540d\u7a31 \u5728 \u4e0d\u540c\u7684\u5730\u65b9 \u51fa\u73fe. \u6703\u51fa\u73fe \u600e\u6a23\u7684\u72c0\u6cc1"},"content":{"rendered":"

\u5728 dBASE 2019<\/strong>\uff0c\u6709\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n

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1. \u4e0d\u540c Class\uff0c\u5404\u81ea\u6709\u76f8\u540c Function \u540d\u7a31\uff08\u6700\u5e38\u898b\uff0c\u4e5f\u662f\u5efa\u8b70\u7684\uff09<\/h2>\n

\u4f8b\u5982\uff1a<\/p>\n

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class CustomerForm of Form\r\n   function Save()\r\n      ? \"Customer Save\"\r\n   return\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u53e6\u4e00\u500b\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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class ProductForm of Form\r\n   function Save()\r\n      ? \"Product Save\"\r\n   return\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u547c\u53eb\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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oCust.Save()\r\noProd.Save()<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u7d50\u679c\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Customer Save\r\nProduct Save<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u5b8c\u5168\u6c92\u6709\u885d\u7a81\u3002<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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2. \u7e7c\u627f (Inheritance)<\/h2>\n
\u4f8b\u5982\uff1a<\/p>\n
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class BaseForm of Form\r\n   function Save()\r\n      ? \"Base\"\r\n   return\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u5b50\u985e\u5225\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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class OrderForm of BaseForm\r\n   function Save()\r\n      ? \"Order\"\r\n   return\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u547c\u53eb\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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o.Save()<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u57f7\u884c\u7684\u662f\uff1a<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Order<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u7236\u985e\u5225\u7684 Save()<\/code> \u88ab\u8986\u5beb (Override)\u3002<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u5982\u679c\u8981\u547c\u53eb\u7236\u985e\u5225\uff1a<\/p>\n
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class::Save()<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
3. \u540c\u4e00\u500b Class \u88e1\u6709\u5169\u500b\u540c\u540d Function<\/h2>\n
\u4f8b\u5982\uff1a<\/p>\n
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<\/div>\n<\/div>\n<\/div>\n
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class MyForm of Form\r\n\r\n   function Save()\r\n   return\r\n\r\n   function Save()\r\n   return\r\n\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u4e0d\u53ef\u4ee5\u3002<\/strong><\/p>\n
\u901a\u5e38\u7de8\u8b6f\u5c31\u6703\u5831\u932f\uff1a<\/p>\n
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<\/div>\n
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Duplicate method<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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4. \u4e0d\u540c PRG \u6709\u76f8\u540c Global Function<\/h2>\n
\u4f8b\u5982<\/p>\n
A.PRG<\/p>\n
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function Test()<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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B.PRG<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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function Test()<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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\u5982\u679c\u5169\u500b\u90fd\u88ab\u7de8\u8b6f\u6216\u8f09\u5165\uff0c<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u901a\u5e38\u6703\u767c\u751f\uff1a<\/p>\n
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  • Duplicate Function<\/li>\n
  • \u5f8c\u8f09\u5165\u7684\u8986\u84cb\u524d\u9762\u7684\uff08\u4f9d\u8f09\u5165\u65b9\u5f0f\u800c\u5b9a<\/span>\uff09<\/li>\n<\/ul>\n
    \u9019\u7a2e\u4e0d\u5efa\u8b70\u3002<\/strong><\/p>\n
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    5. Local Function \u8207 Class Method<\/h2>\n
    \u4f8b\u5982\uff1a<\/p>\n
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    function Save()\r\n\r\nclass MyForm of Form\r\n   function Save()\r\nendclass<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    \u9019\u662f\u4e0d\u540c\u7684\u547d\u540d\u7a7a\u9593\u3002<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    Save()          \/\/ Global Function\r\n\r\nthis.Save()     \/\/ Class Method<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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    \u4e92\u4e0d\u5f71\u97ff\u3002<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
    \u5728 dBASE 2019\uff0c\u6709\u5e7e\u7a2e\u60c5\u6cc1\uff1a 1. \u4e0d\u540c Class\uff0c\u5404\u81ea\u6709\u76f8\u540c Function \u540d\u7a31\uff08\u6700\u5e38\u898b\uff0c\u4e5f […]<\/p>\n","protected":false},"author":1,"featured_media":240,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[17],"tags":[21],"class_list":["post-2010","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dbase_language","tag-dbase"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.dxQerp.com\/wp-content\/uploads\/2020\/09\/m_hrflhgabo-scaled.jpg?fit=2560%2C1704","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/posts\/2010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2010"}],"version-history":[{"count":3,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/posts\/2010\/revisions"}],"predecessor-version":[{"id":2013,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/posts\/2010\/revisions\/2013"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=\/wp\/v2\/media\/240"}],"wp:attachment":[{"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2010"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dxQerp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}