{"id":5231,"date":"2020-05-12T21:24:59","date_gmt":"2020-05-12T13:24:59","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=5231"},"modified":"2020-05-12T21:25:00","modified_gmt":"2020-05-12T13:25:00","slug":"%e8%af%91delphi-10-4-%e6%96%b0%e5%8f%98%e5%8c%96%ef%bc%9a%e5%ae%9a%e5%88%b6%e6%8b%96%e7%ae%a1%e8%ae%b0%e5%bd%95%ef%bc%88%e7%bb%93%e6%9e%84%ef%bc%89%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=5231","title":{"rendered":"[\u8bd1]Delphi 10.4 \u65b0\u53d8\u5316\uff1a\u5b9a\u5236\u62d6\u7ba1\u8bb0\u5f55\uff08\u7ed3\u6784\uff09\u7c7b\u578b"},"content":{"rendered":"\n<p><a href=\"https:\/\/community.idera.com\/developer-tools\/b\/blog\/posts\/custom-managed-records-coming-to-delphi-10-4\">\u539f\u6587\u94fe\u63a5<\/a> \u6b64\u6587\u4e3a\u7b80\u7565\u7ffb\u8bd1\uff0c\u66f4\u8be6\u7ec6\u5185\u5bb9\u8bf7\u8bbf\u95ee\u539f\u6587\u3002<\/p>\n\n\n\n<p>\u73b0\u6709\u7684 Delphi \u4e2d\u7684\u8bb0\u5f55\u5982\u679c\u5305\u542b\u590d\u6742\u7c7b\u578b\uff0c\u5982\u63a5\u53e3\u3001\u52a8\u6001\u6570\u7ec4\u7b49\u521d\u59cb\u5316\u548c\u8bb0\u5f55\u7684\u8d4b\u503c\u90fd\u662f\u7531 Delphi \u9ed8\u8ba4\u63d0\u4f9b\u7684\u8fc7\u7a0b\u5b8c\u6210\u7684\uff0c10.4 \u5141\u8bb8\u7528\u6237\u5b9a\u5236\u8fd9\u4e9b\u64cd\u4f5c\uff0c\u53ea\u8981\u7528\u6237\u5b9e\u73b0\u5bf9\u5e94\u7684\u51fd\u6570\u5c31\u53ef\u4ee5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u521d\u59cb\u5316\u51fd\u6570\uff0c \u91cd\u8f7d\u7c7b\u64cd\u4f5c Initialize<\/li><li>\u6e05\u7406\u51fd\u6570\uff0c\u91cd\u8f7d\u7c7b\u64cd\u4f5c Finalize<\/li><li>\u8d4b\u503c\u51fd\u6570\uff0c\u7528\u4e8e\u505a\u6df1\u62f7\u8d1d\uff0c\u91cd\u8f7d\u7c7b\u64cd\u4f5c Assign<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u793a\u4f8b<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">type\n  TMyRecord = record\n    Value: Integer;\n    class operator Initialize (out Dest: TMyRecord);\n    class operator Finalize(var Dest: TMyRecord);\nclass operator Assign (var Dest: TMyRecord; const [ref] Src: TMyRecord);\n  end;<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u4f7f\u7528<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>\u58f0\u660e\u5b9e\u4f8b\u65f6\uff0c\u4f1a\u81ea\u52a8\u8c03\u7528 Initialize \u51fd\u6570\uff0c\u5bf9\u8bb0\u5f55\u5185\u5bb9\u8fdb\u884c\u521d\u59cb\u5316\u3002<\/li><li>\u8bb0\u5f55\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u5b9e\u4f8b\u65f6\uff0c\u4f1a\u81ea\u52a8\u8c03\u7528 Assign \u51fd\u6570\uff0c\u5b8c\u6210\u503c\u62f7\u8d1d\u3002<\/li><li>\u5b9e\u4f8b\u4f5c\u7528\u57df\u7ed3\u675f\u6216\u8005\u8c03\u7528 Dispose \u91ca\u653e\u65f6\uff0c\u4f1a\u81ea\u52a8 Finalize \u51fd\u6570\uff0c\u5bf9\u8bb0\u5f55\u5185\u5bb9\u8fdb\u884c\u6e05\u7406\u3002<\/li><li>\u5176\u5b83\u65b9\u9762\u548c\u6b63\u5e38\u7684\u8bb0\u5f55\u5b8c\u5168\u4e00\u6837\u3002<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u7528\u9014<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7531\u4e8e\u8bb0\u5f55\u53ef\u4ee5\u5728\u6808\u4e0a\u58f0\u660e\uff0c\u5229\u7528\u5176\u81ea\u52a8\u6e05\u7406\u7279\u6027\uff0c\u5c31\u53ef\u4ee5\u505a\u51fa\u4e00\u4e9b\u795e\u5947\u7684\u4e1c\u897f \uff0c\u6bd4\u5982\u81ea\u52a8\u7ba1\u7406\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\uff0c\u5b9e\u73b0 C++ \u91cc\u7684 auto_ptr \u7c7b\u4f3c\u7684\u529f\u80fd\u3002<\/li><li>\u51cf\u5c11\u5185\u5b58\u6cc4\u6f0f\u7b49\u95ee\u9898\u7684\u53d1\u751f\u3002<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u6587\u94fe\u63a5 \u6b64\u6587\u4e3a\u7b80\u7565\u7ffb\u8bd1\uff0c\u66f4\u8be6\u7ec6\u5185\u5bb9\u8bf7\u8bbf [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","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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