{"id":2152,"date":"2015-03-18T16:43:41","date_gmt":"2015-03-18T08:43:41","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=2152"},"modified":"2015-03-18T20:42:36","modified_gmt":"2015-03-18T12:42:36","slug":"qdataset-%e6%95%b0%e6%8d%ae%e9%9b%86%e5%b7%ae%e5%bc%82%e6%af%94%e8%be%83","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=2152","title":{"rendered":"QDataSet &#8211; \u5982\u4f55\u6bd4\u8f83\u4e24\u4e2a\u6570\u636e\u96c6\u5185\u5bb9\u7684\u5dee\u5f02"},"content":{"rendered":"<p>QDataSet \u63d0\u4f9b\u4e86\u4e24\u4e2a\u51fd\u6570\u6765\u6bd4\u8f83\u4e24\u4e2a\u6570\u636e\u96c6\u7684\u5dee\u5f02\uff0c\u5e76\u5c06\u7ed3\u679c\u4fdd\u5b58\u5230\u7b2c\u4e09\u4e2a\u6570\u636e\u96c6\u3002<\/p>\n<pre class=\"lang:delphi decode:true\">procedure Intersect(ASource1, ASource2: TQDataSet; AFields: QStringW);\r\nprocedure Diff(ASource1, ASource2: TQDataSet; AFields: QStringW;AIncSource1,AIncSource2:Boolean);\r\n<\/pre>\n<p>\u4e24\u4e2a\u51fd\u6570\uff0c\u5176\u4e2d Intersect \u51fd\u6570\u7528\u4e8e\u53d6\u4e24\u4e2a\u6570\u636e\u96c6\u4e2d\u7684\u4ea4\u96c6\u90e8\u5206\uff0c\u800c Diff \u51fd\u6570\u7528\u4e8e\u53d6\u4e24\u4e2a\u6570\u636e\u96c6\u4e2d\u4e0d\u4e00\u6837\u7684\u90e8\u5206\u3002\u8fd9\u4e24\u4e2a\u51fd\u6570\u7684 AFields \u7528\u4e8e\u8bb0\u5f55\u8981\u6bd4\u8f83\u7684\u5b57\u6bb5\u5217\u8868\uff0c\u591a\u4e2a\u5b57\u6bb5\u4e4b\u95f4\u4ee5 \u201c,\u201d \u6216 \u201c;\u201d \u5206\u9694\uff0c\u5982\u679c\u4e24\u4e2a\u6570\u636e\u96c6\u4e2d\u8981\u6bd4\u8f83\u7684\u5b57\u6bb5\u7684\u540d\u79f0\u4e0d\u4e00\u81f4\uff0c\u5219\u4f7f\u7528:<\/p>\n<p style=\"padding-left: 30px;\">ASource1\u4e2d\u7684\u5b57\u6bb5\u540d=ASource2\u4e2d\u7684\u5b57\u6bb5\u540d<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u6765\u5efa\u7acb\u4e24\u8005\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u5982\u679c\u4e24\u4e2a\u5b57\u6bb5\u540d\u4e0d\u4e00\u81f4\uff0c\u5219\u4f1a\u53d6\u7b2c\u4e00\u4e2a\u7ed3\u679c\u96c6\u4e2d\u7684\u5b57\u6bb5\u540d\u4e3a\u6700\u7ec8\u7ed3\u679c\u96c6\u7684\u5b57\u6bb5\u540d\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u8fd9\u4e24\u4e2a\u51fd\u6570\u65f6\uff0c\u8fd8\u8981\u6ce8\u610f\u4e00\u70b9\uff1a\u8fd9\u4e24\u4e2a\u8981\u6bd4\u8f83\u6570\u636e\u96c6\u4e2d\u5bf9\u5e94\u7684\u5b57\u6bb5\u7684\u7c7b\u578b\u8981\u4fdd\u6301\u4e00\u81f4\uff0c\u5426\u5219\u6bd4\u8f83\u65e0\u610f\u4e49\uff0c\u7a0b\u5e8f\u4f1a\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n<p>Intersect \u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u6570\u636e\u96c6\u4e2d\u5171\u540c\u7684\u8bb0\u5f55\uff0c\u800c Diff \u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u7ed3\u679c\u96c6\u4e2d\u4e0d\u540c\u7684\u8bb0\u5f55\uff0c\u4f46\u989d\u5916\u63d0\u4f9b\u4e86\u4e24\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>AIncSource1 \u4e3a True \u65f6\uff0c\u5c06 ASource1 \u4e2d\u6709\uff0c\u800c ASource2 \u4e2d\u65e0\u7684\u8bb0\u5f55\u52a0\u5230\u7ed3\u679c\u4e2d<\/li>\n<li>AIncSource2 \u4e3a True \u65f6\uff0c\u5c06 ASoruce2 \u4e2d\u6709\uff0c\u800c ASource1 \u4e2d\u65e0\u7684\u8bb0\u5f55\u52a0\u5230\u7ed3\u679c\u4e2d<\/li>\n<\/ul>\n<p>\u81f3\u4e8e\u5b83\u4eec\u7684\u8c03\u7528\u65b9\u6cd5\uff0cSo easy!<\/p>\n<pre class=\"lang:delphi decode:true \">procedure TForm1.Button1Click(Sender: TObject);\r\nbegin\r\nFDest.Diff(FSource1,FSource2,Edit1.Text,CheckBox1.Checked,CheckBox2.Checked);\r\nend;\r\n\r\nprocedure TForm1.Button2Click(Sender: TObject);\r\nbegin\r\nFDest.Intersect(FSource1,FSource2,Edit1.Text);\r\nend;<\/pre>\n<p>\u7a0b\u5e8f\u5b9e\u9645\u8fd0\u884c\u6548\u679c\u622a\u56fe\uff0cCC_1~CC_10 \u662f\u4e24\u8005\u516c\u5171\u7684\u5185\u5bb9\u3002<a href=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/DSDiff.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2159\" src=\"https:\/\/blog.qdac.cc\/wp-content\/uploads\/2015\/03\/DSDiff.gif\" alt=\"DSDiff\" width=\"729\" height=\"462\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>QDataSet \u63d0\u4f9b\u4e86\u4e24\u4e2a\u51fd\u6570\u6765\u6bd4\u8f83\u4e24 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[69,8,9,66],"tags":[358,359],"class_list":["post-2152","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-qdac","category-qdb","tag-358","tag-359"],"views":4790,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2152"}],"version-history":[{"count":4,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2152\/revisions"}],"predecessor-version":[{"id":2160,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2152\/revisions\/2160"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}