{"id":33432,"date":"2024-11-25T08:51:16","date_gmt":"2024-11-25T00:51:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/33432\/"},"modified":"2024-11-25T08:51:16","modified_gmt":"2024-11-25T00:51:16","slug":"%e5%b0%8f%e7%a8%8b%e5%ba%8f%e7%94%bb%e5%b8%83canvas%e9%9a%90%e8%97%8f%e7%9a%84%e9%97%ae%e9%a2%98%e8%a7%a3%e5%86%b3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/33432\/","title":{"rendered":"\u5c0f\u7a0b\u5e8f\u753b\u5e03canvas\u9690\u85cf\u7684\u95ee\u9898\u89e3\u51b3"},"content":{"rendered":"

\u76f8\u4fe1\u6709\u5f88\u591a\u65f6\u5019,\u5927\u5bb6\u90fd\u4f1a\u9047\u5230\u8981\u5229\u7528 canvas\u753b\u5e03 \u751f\u6210\u56fe\u7247\u7684\u65f6\u5019.
\u5f53\u7136\u6211\u4e5f\u9047\u5230\u4e86, \u5728\u9879\u76ee\u4e2dwxml\u9875\u9762\u4e2d\u751f\u6210\u7684canvas\u4e4b\u540e,\u6211\u53d1\u73b0\u600e\u4e48\u6837\u7ed9canvas\u6807\u7b7e\u52a0css\u90fd\u65e0\u6cd5\u8ba9canvas\u4e0d\u5f71\u54cd\u5230\u9875\u9762,<\/p>\n

  <canvas    style=\"opacity:0;position:fixed;z-index:-9999;\">\n    \/\/ \u65e0\u8bba\u662fopacity  \u8fd8\u662f  z-index \u90fd\u65e0\u6cd5\u89e3\u51b3,\u591a\u591a\u5c11\u5c11\u4f1a\u5f71\u54cd\n   <\/canvas><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n  \u51e0\u756a\u7422\u78e8,\u60f3\u51fa\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848: \u5728canvas\u5916\u5c42\u52a0\u7236\u6807\u7b7e,\u518d\u63a7\u5236\u7236\u6807\u7b7e\u7684\u663e\u793a\n<\/p><\/blockquote>\n
<view  style=\"width:0px;height:0px; overflow:hidden\"> \/\/\u8ba9\u7236\u6807\u7b7e 0\u5bbd 0\u9ad8 \u9690\u85cf\u6ea2\u51fa\n    <canvas >\n    <\/canvas>\n<\/view><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u4e0a\u8ff0\u4e0d\u884c\u8bf7\u770b\u4e0b\u9762\u8fd9\u4e2a:<\/p>\n
  <canvas style=\"position:fixed:left:9999px\" >\n\/\/ \u76f4\u63a5\u8ba9canvas \u98de\u5230\u5929\u9645,  \u7b80\u5355\u7c97\u66b4;   \u4f7f\u7528\u65f6\u6ce8\u610f position\u7684\u95ee\u9898; \u5982\u679c fixed\u4e0d\u884c, \u6362\u5176\u4ed6\u5b9a\u4f4d\u8bd5\u8bd5\n    <\/canvas><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
ok  ..  \u52a0\u6cb9\u5199\u4ee3\u7801\u5427…<\/p>\n
\u63a8\u8350\u6559\u7a0b\uff1a\u300a\u300b<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5c0f\u7a0b\u5e8f\u753b\u5e03canvas\u9690\u85cf\u7684\u95ee\u9898\u89e3\u51b3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u76f8\u4fe1\u6709\u5f88\u591a\u65f6\u5019,\u5927\u5bb6\u90fd\u4f1a\u9047\u5230\u8981\u5229\u7528 canvas\u753b\u5e03 \u751f\u6210\u56fe\u7247\u7684\u65f6\u5019.\u5f53\u7136\u6211\u4e5f\u9047\u5230\u4e86, \u5728\u9879\u76ee\u4e2dwxml\u9875\u9762\u4e2d\u751f\u6210\u7684canvas\u4e4b\u540e,\u6211\u53d1\u73b0\u600e\u4e48\u6837\u7ed9canvas\u6807\u7b7e\u52a0css\u90fd\u65e0\u6cd5\u8ba9canvas\u4e0d\u5f71\u54cd\u5230\u9875\u9762, <canvas style=”opacity:0;position:fixed;z-index:-9999;”> \/\/ \u65e0\u8bba\u662fopacity \u8fd8\u662f z-index \u90fd\u65e0\u6cd5\u89e3\u51b3,\u591a\u591a\u5c11\u5c11\u4f1a\u5f71\u54cd <\/canvas> \u767b\u5f55\u540e\u590d\u5236 \u51e0\u756a\u7422\u78e8,\u60f3\u51fa\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848: \u5728canvas\u5916\u5c42\u52a0\u7236\u6807\u7b7e,\u518d\u63a7\u5236\u7236\u6807\u7b7e\u7684\u663e\u793a <view style=”width:0px;height:0px; overflow:hidden”> \/\/\u8ba9\u7236\u6807\u7b7e 0\u5bbd 0\u9ad8 \u9690\u85cf\u6ea2\u51fa <canvas > <\/canvas> <\/view> \u767b\u5f55\u540e\u590d\u5236 \u5982\u679c\u4e0a\u8ff0\u4e0d\u884c\u8bf7\u770b\u4e0b\u9762\u8fd9\u4e2a: <canvas style=”position:fixed:left:9999px” > \/\/ \u76f4\u63a5\u8ba9canvas \u98de\u5230\u5929\u9645, \u7b80\u5355\u7c97\u66b4; \u4f7f\u7528\u65f6\u6ce8\u610f position\u7684\u95ee\u9898; \u5982\u679c fixed\u4e0d\u884c, \u6362\u5176\u4ed6\u5b9a\u4f4d\u8bd5\u8bd5 <\/canvas> \u767b\u5f55\u540e\u590d\u5236 ok  ..  \u52a0\u6cb9\u5199\u4ee3\u7801\u5427… \u63a8\u8350\u6559\u7a0b\uff1a\u300a\u300b \u4ee5\u4e0a\u5c31\u662f\u5c0f\u7a0b\u5e8f\u753b\u5e03canvas\u9690\u85cf\u7684\u95ee\u9898\u89e3\u51b3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-33432","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/33432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=33432"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/33432\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=33432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=33432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=33432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}