{"id":4915,"date":"2018-06-23T11:32:56","date_gmt":"2018-06-23T03:32:56","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=4915"},"modified":"2018-06-23T11:33:42","modified_gmt":"2018-06-23T03:33:42","slug":"%e6%97%a5%e7%a7%af%e6%9c%88%e7%b4%af-20180623w1037-for-loop-variable-result-may-be-undefined-after-loop","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=4915","title":{"rendered":"[\u65e5\u79ef\u6708\u7d2f]-20180623:W1037 FOR-Loop variable ‘Result’ may be undefined after loop"},"content":{"rendered":"

\u3010\u8bd1\u3011<\/h4>\n

W1037 FOR \u5faa\u73af\u53d8\u91cf Result \u53ef\u80fd\u5728\u5faa\u73af\u540e\u5931\u53bb\u5b9a\u4e49<\/p>\n

\u3010\u95ee\u9898\u539f\u56e0\u3011<\/h4>\n

Result \u88ab\u7528\u5728\u5faa\u73af\u7684\u521d\u59cb\u503c\u6216\u7ed3\u675f\u503c\u65f6\u4f1a\u5f15\u53d1\u6b64\u8b66\u544a\uff1a<\/p>\n

function Test: Integer;\r\nvar\r\n  I: Integer;\r\nbegin\r\n  Result:=100;\r\n  for I := 0 to Result do\r\n  begin\r\n    ...\r\n  end;\r\nend;<\/pre>\n
\u5c31\u4e2a\u4eba\u6765\u770b\uff0c\u7528\u505a\u5faa\u73af\u7684\u7ed3\u675f\u503c\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u4f46\u4e0b\u9762\u7684\u7528\u6cd5\u5c31\u6709\u95ee\u9898\u4e86:<\/p>\n
function Test: Integer;\r\nbegin\r\n  for Result := 0 to 10 do\r\n  begin\r\n    ...\r\n  end;\r\nend;<\/pre>\n
\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cResult\u7684\u8fd4\u56de\u503c\u5c06\u662f11\uff0c\u800c\u4e0d\u662f10\uff0c\u8fd9\u53ef\u80fd\u4e0d\u7b26\u5408\u4e00\u822c\u4eba\u7684\u9884\u671f\uff0c\u56e0\u6b64\u5b98\u65b9\u7ed9\u4e88\u4e86\u4e00\u4e2a\u8b66\u544a\u3002\u4f46\u7b2c\u4e00\u79cd\u60c5\u51b5\uff0c\u6211\u89c9\u5f97\u6ca1\u5fc5\u8981\u3002<\/p>\n
\u3010\u89e3\u51b3\u65b9\u6cd5\u3011<\/h4>\n
\u5c3d\u91cf\u4e0d\u5728 For \u5faa\u73af\u4e2d\u4f7f\u7528 Result \u505a\u4e3a\u63a7\u5236\u53d8\u91cf\uff0c\u9664\u975e\u4f60\u81ea\u5df1\u77e5\u9053\u786e\u5b9e\u600e\u4e48\u7528\u3002\u8c61\u4e0a\u9762\u7684\u7b2c\u4e8c\u79cd\u60c5\u51b5\uff0c\u6362\u79cd\u5199\u6cd5\u5373\u53ef\u3002<\/p>\n
\u3010\u793a\u4f8b\u3011<\/h4>\n
\u65e0<\/p>\n
\u3010\u53c2\u8003\u3011<\/p>\n
\u5b98\u65b9\u6587\u6863\u8bf4\u660e<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u3010\u8bd1\u3011 W1037 FOR \u5faa\u73af\u53d8\u91cf R […]<\/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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[751],"class_list":["post-4915","post","type-post","status-publish","format-standard","hentry","category-delphi","tag-w1037"],"views":2344,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4915","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=4915"}],"version-history":[{"count":2,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4915\/revisions"}],"predecessor-version":[{"id":4917,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4915\/revisions\/4917"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}