{"id":2929,"date":"2016-11-21T14:19:53","date_gmt":"2016-11-21T06:19:53","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=2929"},"modified":"2016-11-21T16:22:48","modified_gmt":"2016-11-21T08:22:48","slug":"%e7%94%a8javasctipt%e4%bf%9d%e5%ad%98div%e4%b8%ad%e7%9a%84%e5%86%85%e5%ae%b9%e4%b8%ba%e5%9b%be%e7%89%87","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=2929","title":{"rendered":"\u7528JavaSctipt\u4fdd\u5b58div\u4e2d\u7684\u5185\u5bb9\u4e3a\u56fe\u7247"},"content":{"rendered":"

\u5728\u5f00\u53d1\u62a5\u8868\u5bfc\u51fa\u7b49\u9879\u76ee\u6a21\u5757\u65f6\uff0c\u5e38\u5e38\u9700\u8981\u628a\u6d4f\u89c8\u5668\u4e2d\u770b\u5230\u7684\u56fe\u8868\u7b49\u4fdd\u5b58\u4e3a\u56fe\u7247\uff0c\u65b9\u6cd5\u5f88\u591a\uff0c\u8fd9\u91cc\u4e3b\u8981\u8bf4\u8bf4\u5982\u4f55\u7528\u00a0JS\u00a0\u6765\u4fdd\u5b58\u56fe\u7247\u3002<\/p>\n

\u65b9\u6cd5\u4e00\uff1a\u7528\u63d2\u4ef6 html2canvas\u00a0\u548c\u00a0canvas2image\u3002<\/strong><\/p>\n

\u4ece\u7f51\u4e0a\u4e0b\u8f7d\u63d2\u4ef6 html2canvas\u00a0\u63d2\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u5728\u8fd9\u91cc\u4e0b\u8f7d<\/a>\u3002<\/p>\n

\u4e0b\u8f7d\u540e\u653e\u5165\u5230\u9879\u76ee\u4e2d\uff0c\u5728\u9700\u8981\u5bfc\u51fa\u56fe\u7247\u7684\u9875\u9762\u4e2d\u5f15\u5165\u00a0html2canvas.js\u00a0\u548c canvas2image.js\u3002<\/p>\n

\u4fdd\u5b58\u65b9\u6cd5\uff1a<\/p>\n

\n
\n
Code<\/b>\u00a0\u00a0\u00a0View<\/a>Copy<\/a>Print<\/a><\/div>\n<\/div>\n
    \n
  1. html2canvas($(\"#id_div\"<\/span>),\u00a0{<\/li>\n
  2. \u00a0\u00a0\u00a0\u00a0onrendered:\u00a0function<\/span>(canvas)\u00a0{<\/li>\n
  3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Canvas2Image.saveAsPNG(canvas,\u00a0300,\u00a0200);<\/li>\n
  4. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
  5. });<\/li>\n<\/ol>\n<\/div>\n

    \u5982\u679c\u53d1\u751f\u5982\u4e0b\u9519\u8bef\uff1a<\/p>\n

    Uncaught ReferenceError: html2canvas is not defined(\u2026)<\/span><\/code><\/p>\n

    \u8bf4\u660e\u5f15\u5165\u63d2\u4ef6\u592a\u665a\uff0c\u9700\u8981\u628a\u5f15\u5165\u7684\u00a0js\u00a0\u5411\u524d\u632a\uff0c\u8ba9\u5176\u63d2\u4ef6\u5148\u5f15\u5165\uff0c\u518d\u5f15\u5165\u753b\u9762\u4e2d\u7684\u5176\u5b83\u63d2\u4ef6\u5373\u53ef\u3002<\/p>\n

    canvas2image.js\u00a0\u4e2d\u8fd8\u6709\u4e00\u4e9b\u5176\u5b83\u4fdd\u5b58\u53ca\u8f6c\u6362\u65b9\u6cd5\uff0c\u6309\u7167\u81ea\u5df1\u7684\u9700\u6c42\u9009\u62e9\u5373\u53ef\uff0c\u8be6\u7ec6\u5982\u4e0b\uff1a<\/p>\n

    \n
    \n
    Code<\/b>\u00a0\u00a0\u00a0View<\/a>Copy<\/a>Print<\/a><\/div>\n<\/div>\n
      \n
    1. \/\/\u00a0\u4fdd\u5b58\u56fe\u7247<\/span><\/li>\n
    2. Canvas2Image.saveAsImage(canvasObj,\u00a0width,\u00a0height,\u00a0type)<\/li>\n
    3. Canvas2Image.saveAsPNG(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    4. Canvas2Image.saveAsJPEG(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    5. Canvas2Image.saveAsGIF(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    6. Canvas2Image.saveAsBMP(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    7. <\/li>\n
    8. \/\/\u00a0\u8f6c\u6362\u56fe\u7247<\/span><\/li>\n
    9. Canvas2Image.convertToImage(canvasObj,\u00a0width,\u00a0height,\u00a0type)<\/li>\n
    10. Canvas2Image.convertToPNG(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    11. Canvas2Image.convertToJPEG(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    12. Canvas2Image.convertToGIF(canvasObj,\u00a0width,\u00a0height)<\/li>\n
    13. Canvas2Image.convertToBMP(canvasObj,\u00a0width,\u00a0height)<\/li>\n<\/ol>\n<\/div>\n

       <\/p>\n

      \u5176\u5b83\u65b9\u6cd5\uff0c\u5f85\u8865\u5145\u3002\u3002\u3002<\/p>\n

      Good\u00a0Luck\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5728\u5f00\u53d1\u62a5\u8868\u5bfc\u51fa\u7b49\u9879\u76ee\u6a21\u5757\u65f6\uff0c\u5e38\u5e38\u9700\u8981\u628a\u6d4f\u89c8\u5668\u4e2d\u770b\u5230\u7684\u56fe\u8868\u7b49\u4fdd\u5b58\u4e3a\u56fe\u7247\uff0c\u65b9\u6cd5\u5f88\u591a\uff0c\u8fd9\u91cc\u4e3b\u8981\u8bf4\u8bf4\u5982\u4f55\u7528\u00a0JS\u00a0\u6765\u4fdd […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[430],"tags":[420,159,292,32],"class_list":["post-2929","post","type-post","status-publish","format-standard","hentry","category-web","tag-js-2","tag-web","tag-292","tag-32"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2929"}],"version-history":[{"count":5,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2929\/revisions"}],"predecessor-version":[{"id":2935,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/2929\/revisions\/2935"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2929"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}