{"id":1297,"date":"2014-11-20T16:59:33","date_gmt":"2014-11-20T08:59:33","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=1297"},"modified":"2014-11-20T16:59:33","modified_gmt":"2014-11-20T08:59:33","slug":"qjson%e6%9b%b4%e6%96%b0-%e5%a2%9e%e5%8a%a0asbytes%e5%b1%9e%e6%80%a7%e5%8f%8a%e5%87%a0%e4%b8%aa%e8%be%85%e5%8a%a9%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=1297","title":{"rendered":"QJSON\u66f4\u65b0-\u589e\u52a0AsBytes\u5c5e\u6027\u53ca\u51e0\u4e2a\u8f85\u52a9\u51fd\u6570"},"content":{"rendered":"

\u3010\u66f4\u65b0\u5185\u5bb9\u3011<\/h4>\n

1\u3001 \u52a0\u5165AsBytes\u5c5e\u6027\uff0c\u4ee5\u652f\u6301\u4e8c\u8fdb\u5236\u6570\u636e\u7c7b\u578b\uff0c\u9ed8\u8ba4\u5b9e\u73b0\u76f4\u63a5\u4f7f\u7528\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u8868\u8fbe\uff0c\u4e0a\u5c42\u53ef\u4ee5\u91cd\u8f7dOnQJsonEncodeBytes\u548cOnQJsonDecodeBytes\u4e8b\u4ef6\u6765\u66ff\u6362\u4e3a\u81ea\u5df1\u7684\u5b9e\u73b0\uff08\u5982ZLib+Base64\uff09<\/p>\n

var\r\n   ABytes:TBytes;\r\n   AJson:TQJson;\r\n...\r\n\r\nAJson.Add('Bytes').AsBytes:=ABytes;\r\n...\r\nABytes:=AJson.ItemByName('Bytes').AsBytes;\r\n\r\n<\/pre>\n
2\u3001 \u52a0\u5165ValueFromStream\/ValueFromFile\/StreamFromValue\/StreamFromFile\u51fd\u6570\uff0c\u7b80\u5355\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
var\r\n  AJson: TQJson;\r\nbegin\r\nAJson := TQJson.Create;\r\ntry\r\n  AJson.Add('File').ValueFromFile('c:\\picture\\D2007vslkJson.jpg');\r\n  AJson.ItemByName('File').FileFromValue('c:\\picture\\copy.jpg');\r\n  mmResult.Text:=AJson.AsJson;\r\nfinally\r\n  FreeAndNil(AJson);\r\nend;\r\nend;<\/pre>\n
\u3010\u66f4\u65b0\u7ea7\u522b\u3011<\/p>\n
\u53ef\u9009<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u3010\u66f4\u65b0\u5185\u5bb9\u3011 1\u3001 \u52a0\u5165AsBytes\u5c5e […]<\/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":[69,8,9,7,2],"tags":[],"class_list":["post-1297","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-qdac","category-qjson","category-update"],"views":3517,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/1297","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=1297"}],"version-history":[{"count":1,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/1297\/revisions"}],"predecessor-version":[{"id":1298,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/1297\/revisions\/1298"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}