{"id":2570,"date":"2015-06-09T14:44:40","date_gmt":"2015-06-09T06:44:40","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=2570"},"modified":"2015-06-09T14:44:51","modified_gmt":"2015-06-09T06:44:51","slug":"%e5%b0%86%e4%b8%80%e4%b8%aa%e6%b5%ae%e7%82%b9%e6%95%b0%e8%bd%ac%e6%8d%a2%e4%b8%ba%e4%b8%8d%e5%b0%8f%e4%ba%8e%e6%88%96%e4%b8%8d%e5%a4%a7%e4%ba%8e%e8%af%a5%e5%80%bc%e7%9a%84%e6%9c%80%e5%b0%8f%e6%88%96","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=2570","title":{"rendered":"\u5c06\u4e00\u4e2a\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u4e0d\u5c0f\u4e8e\u6216\u4e0d\u5927\u4e8e\u8be5\u503c\u7684\u6700\u5c0f\u6216\u6700\u5927\u6574\u6570"},"content":{"rendered":"<pre class=\"lang:delphi decode:true  \">function RoundX(v: Double): Double;\r\nvar\r\n  APower: Integer;\r\n  ANeg: Boolean;\r\nbegin\r\n  if IsZero(v) then\r\n    Result := 0\r\n  else\r\n  begin\r\n    APower := 0;\r\n    ANeg := v &lt; 0;\r\n    if ANeg then\r\n      v := -v;\r\n    while v &lt; 1 do\r\n    begin\r\n      v := v * 10;\r\n      Dec(APower);\r\n    end;\r\n    while v &gt; 10 do\r\n    begin\r\n      v := v \/ 10;\r\n      Inc(APower);\r\n    end;\r\n    if not IsZero(v - Trunc(v)) then\r\n      Result := (Trunc(v) + 1) * power(10, APower)\r\n    else\r\n      Result := Trunc(v) * power(10, APower);\r\n    if ANeg then\r\n      Result := -Result;\r\n  end;\r\nend;<\/pre>\n<p>RoundX(1.5) = \u00a02<\/p>\n<p>RoundX(123) = 200<\/p>\n<p>RoundX(-1.5) = -2<\/p>\n<p>RoundX(-123)=-200<\/p>\n","protected":false},"excerpt":{"rendered":"<p>function RoundX(v: D [&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 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":[69,8,21],"tags":[],"class_list":["post-2570","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-misc"],"views":3189,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2570","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=2570"}],"version-history":[{"count":1,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2570\/revisions"}],"predecessor-version":[{"id":2571,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2570\/revisions\/2571"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}