{"id":3043,"date":"2020-09-16T20:41:23","date_gmt":"2020-09-16T12:41:23","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=3043"},"modified":"2020-09-16T20:41:23","modified_gmt":"2020-09-16T12:41:23","slug":"%e6%b5%8f%e8%a7%88%e5%99%a8-file-%e5%af%b9%e8%b1%a1%ef%bc%8cfilelist-%e5%af%b9%e8%b1%a1%ef%bc%8cfilereader-%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=3043","title":{"rendered":"\u6d4f\u89c8\u5668\u2014File \u5bf9\u8c61\uff0cFileList \u5bf9\u8c61\uff0cFileReader \u5bf9\u8c61"},"content":{"rendered":"<h2><strong>1\u3001File \u5bf9\u8c61<\/strong><\/h2>\n<p>File \u5bf9\u8c61\u4ee3\u8868\u4e00\u4e2a\u6587\u4ef6\uff0c\u7528\u6765\u8bfb\u5199\u6587\u4ef6\u4fe1\u606f\u3002\u5b83\u7ee7\u627f\u4e86 Blob \u5bf9\u8c61\uff0c\u6216\u8005\u8bf4\u662f\u4e00\u79cd\u7279\u6b8a\u7684 Blob \u5bf9\u8c61\uff0c\u6240\u6709\u53ef\u4ee5\u4f7f\u7528 Blob \u5bf9\u8c61\u7684\u573a\u5408\u90fd\u53ef\u4ee5\u4f7f\u7528\u5b83\u3002<\/p>\n<p>\u6700\u5e38\u89c1\u7684\u4f7f\u7528\u573a\u5408\u662f\u8868\u5355\u7684\u6587\u4ef6\u4e0a\u4f20\u63a7\u4ef6\uff08<code>&lt;input type=\"file\"&gt;<\/code>\uff09\uff0c\u7528\u6237\u9009\u4e2d\u6587\u4ef6\u4ee5\u540e\uff0c\u6d4f\u89c8\u5668\u5c31\u4f1a\u751f\u6210\u4e00\u4e2a\u6570\u7ec4\uff0c\u91cc\u9762\u662f\u6bcf\u4e00\u4e2a\u7528\u6237\u9009\u4e2d\u7684\u6587\u4ef6\uff0c\u5b83\u4eec\u90fd\u662f File \u5b9e\u4f8b\u5bf9\u8c61\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">\/\/ HTML \u4ee3\u7801\u5982\u4e0b\r\n\/\/ &lt;input id=\"fileItem\" type=\"file\"&gt;\r\nvar file = document.getElementById('fileItem').files[0];\r\nfile instanceof File \/\/ true\r\n<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c<code>file<\/code>\u662f\u7528\u6237\u9009\u4e2d\u7684\u7b2c\u4e00\u4e2a\u6587\u4ef6\uff0c\u5b83\u662f File \u7684\u5b9e\u4f8b\u3002<\/p>\n<h3>1.1\u3001\u6784\u9020\u51fd\u6570<\/h3>\n<p>\u6d4f\u89c8\u5668\u539f\u751f\u63d0\u4f9b\u4e00\u4e2a<code>File()<\/code>\u6784\u9020\u51fd\u6570\uff0c\u7528\u6765\u751f\u6210 File \u5b9e\u4f8b\u5bf9\u8c61\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">new File(array, name [, options])\r\n<\/code><\/pre>\n<p><code>File()<\/code>\u6784\u9020\u51fd\u6570\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\u3002<\/p>\n<ul>\n<li>array\uff1a\u4e00\u4e2a\u6570\u7ec4\uff0c\u6210\u5458\u53ef\u4ee5\u662f\u4e8c\u8fdb\u5236\u5bf9\u8c61\u6216\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/li>\n<li>name\uff1a\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u6587\u4ef6\u540d\u6216\u6587\u4ef6\u8def\u5f84\u3002<\/li>\n<li>options\uff1a\u914d\u7f6e\u5bf9\u8c61\uff0c\u8bbe\u7f6e\u5b9e\u4f8b\u7684\u5c5e\u6027\u3002\u8be5\u53c2\u6570\u53ef\u9009\u3002<\/li>\n<\/ul>\n<p>\u7b2c\u4e09\u4e2a\u53c2\u6570\u914d\u7f6e\u5bf9\u8c61\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e24\u4e2a\u5c5e\u6027\u3002<\/p>\n<ul>\n<li>type\uff1a\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u5b9e\u4f8b\u5bf9\u8c61\u7684 MIME \u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002<\/li>\n<li>lastModified\uff1a\u65f6\u95f4\u6233\uff0c\u8868\u793a\u4e0a\u6b21\u4fee\u6539\u7684\u65f6\u95f4\uff0c\u9ed8\u8ba4\u4e3aDate.now()\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">var file = new File(\r\n  ['foo'],\r\n  'foo.txt',\r\n  {\r\n    type: 'text\/plain',\r\n  }\r\n);\r\n<\/code><\/pre>\n<h3>1.2\u3001\u5b9e\u4f8b\u5c5e\u6027\u548c\u5b9e\u4f8b\u65b9\u6cd5<\/h3>\n<p>File \u5bf9\u8c61\u6709\u4ee5\u4e0b\u5b9e\u4f8b\u5c5e\u6027\u3002<\/p>\n<ul>\n<li>File.lastModified\uff1a\u6700\u540e\u4fee\u6539\u65f6\u95f4<\/li>\n<li>File.name\uff1a\u6587\u4ef6\u540d\u6216\u6587\u4ef6\u8def\u5f84<\/li>\n<li>File.size\uff1a\u6587\u4ef6\u5927\u5c0f\uff08\u5355\u4f4d\u5b57\u8282\uff09<\/li>\n<li>File.type\uff1a\u6587\u4ef6\u7684 MIME \u7c7b\u578b<\/li>\n<\/ul>\n<pre><\/pre>\n<pre><code class=\"language-js\" lang=\"js\">var myFile = new File([], 'file.bin', {\r\n  lastModified: new Date(2018, 1, 1),\r\n});\r\nmyFile.lastModified \/\/ 1517414400000\r\nmyFile.name \/\/ \"file.bin\"\r\nmyFile.size \/\/ 0\r\nmyFile.type \/\/ \"\"\r\n<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c\u7531\u4e8e<code>myFile<\/code>\u7684\u5185\u5bb9\u4e3a\u7a7a\uff0c\u4e5f\u6ca1\u6709\u8bbe\u7f6e MIME \u7c7b\u578b\uff0c\u6240\u4ee5<code>size<\/code>\u5c5e\u6027\u7b49\u4e8e0\uff0c<code>type<\/code>\u5c5e\u6027\u7b49\u4e8e\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n<p>File \u5bf9\u8c61\u6ca1\u6709\u81ea\u5df1\u7684\u5b9e\u4f8b\u65b9\u6cd5\uff0c\u7531\u4e8e\u7ee7\u627f\u4e86 Blob \u5bf9\u8c61\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528 Blob \u7684\u5b9e\u4f8b\u65b9\u6cd5<code>slice()<\/code>\u3002<\/p>\n<h2><strong>2\u3001FileList \u5bf9\u8c61<\/strong><\/h2>\n<p><code>FileList<\/code>\u5bf9\u8c61\u662f\u4e00\u4e2a\u7c7b\u4f3c\u6570\u7ec4\u7684\u5bf9\u8c61\uff0c\u4ee3\u8868\u4e00\u7ec4\u9009\u4e2d\u7684\u6587\u4ef6\uff0c\u6bcf\u4e2a\u6210\u5458\u90fd\u662f\u4e00\u4e2a File \u5b9e\u4f8b\u3002\u5b83\u4e3b\u8981\u51fa\u73b0\u5728\u4e24\u4e2a\u573a\u5408\u3002<\/p>\n<ul>\n<li>\u6587\u4ef6\u63a7\u4ef6\u8282\u70b9\uff08<input type=\"file\" \/>\uff09\u7684files\u5c5e\u6027\uff0c\u8fd4\u56de\u4e00\u4e2a FileList \u5b9e\u4f8b\u3002<\/li>\n<li>\u62d6\u62c9\u4e00\u7ec4\u6587\u4ef6\u65f6\uff0c\u76ee\u6807\u533a\u7684DataTransfer.files\u5c5e\u6027\uff0c\u8fd4\u56de\u4e00\u4e2a FileList \u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-js\" lang=\"js\">\/\/ HTML \u4ee3\u7801\u5982\u4e0b\r\n\/\/ &lt;input id=\"fileItem\" type=\"file\"&gt;\r\nvar files = document.getElementById('fileItem').files;\r\nfiles instanceof FileList \/\/ true\r\n<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c\u6587\u4ef6\u63a7\u4ef6\u7684<code>files<\/code>\u5c5e\u6027\u662f\u4e00\u4e2a FileList \u5b9e\u4f8b\u3002<\/p>\n<p>FileList \u7684\u5b9e\u4f8b\u5c5e\u6027\u4e3b\u8981\u662f<code>length<\/code>\uff0c\u8868\u793a\u5305\u542b\u591a\u5c11\u4e2a\u6587\u4ef6\u3002<\/p>\n<p>FileList \u7684\u5b9e\u4f8b\u65b9\u6cd5\u4e3b\u8981\u662f<code>item()<\/code>\uff0c\u7528\u6765\u8fd4\u56de\u6307\u5b9a\u4f4d\u7f6e\u7684\u5b9e\u4f8b\u3002\u5b83\u63a5\u53d7\u4e00\u4e2a\u6574\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u8868\u793a\u4f4d\u7f6e\u7684\u5e8f\u53f7\uff08\u4ece\u96f6\u5f00\u59cb\uff09\u3002\u4f46\u662f\uff0c\u7531\u4e8e FileList \u7684\u5b9e\u4f8b\u662f\u4e00\u4e2a\u7c7b\u4f3c\u6570\u7ec4\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26\uff0c\u5373<code>myFileList[0]<\/code>\u7b49\u540c\u4e8e<code>myFileList.item(0)<\/code>\uff0c\u6240\u4ee5\u4e00\u822c\u7528\u4e0d\u5230<code>item()<\/code>\u65b9\u6cd5\u3002<\/p>\n<h2><strong>3\u3001FileReader \u5bf9\u8c61<\/strong><\/h2>\n<p>FileReader \u5bf9\u8c61\u7528\u4e8e\u8bfb\u53d6 File \u5bf9\u8c61\u6216 Blob \u5bf9\u8c61\u6240\u5305\u542b\u7684\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<p>\u6d4f\u89c8\u5668\u539f\u751f\u63d0\u4f9b\u4e00\u4e2a<code>FileReader<\/code>\u6784\u9020\u51fd\u6570\uff0c\u7528\u6765\u751f\u6210 FileReader \u5b9e\u4f8b\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">var reader = new FileReader();\r\n<\/code><\/pre>\n<p>FileReader \u6709\u4ee5\u4e0b\u7684\u5b9e\u4f8b\u5c5e\u6027\u3002<\/p>\n<ul>\n<li>FileReader.error\uff1a\u8bfb\u53d6\u6587\u4ef6\u65f6\u4ea7\u751f\u7684\u9519\u8bef\u5bf9\u8c61<\/li>\n<li>FileReader.readyState\uff1a\u6574\u6570\uff0c\u8868\u793a\u8bfb\u53d6\u6587\u4ef6\u65f6\u7684\u5f53\u524d\u72b6\u6001\u3002\u4e00\u5171\u6709\u4e09\u79cd\u53ef\u80fd\u7684\u72b6\u6001\uff0c0\u8868\u793a\u5c1a\u672a\u52a0\u8f7d\u4efb\u4f55\u6570\u636e\uff0c1\u8868\u793a\u6570\u636e\u6b63\u5728\u52a0\u8f7d\uff0c2\u8868\u793a\u52a0\u8f7d\u5b8c\u6210\u3002<\/li>\n<li>FileReader.result\uff1a\u8bfb\u53d6\u5b8c\u6210\u540e\u7684\u6587\u4ef6\u5185\u5bb9\uff0c\u6709\u53ef\u80fd\u662f\u5b57\u7b26\u4e32\uff0c\u4e5f\u53ef\u80fd\u662f\u4e00\u4e2a ArrayBuffer \u5b9e\u4f8b\u3002<\/li>\n<li>FileReader.onabort\uff1aabort\u4e8b\u4ef6\uff08\u7528\u6237\u7ec8\u6b62\u8bfb\u53d6\u64cd\u4f5c\uff09\u7684\u76d1\u542c\u51fd\u6570\u3002<\/li>\n<li>FileReader.onerror\uff1aerror\u4e8b\u4ef6\uff08\u8bfb\u53d6\u9519\u8bef\uff09\u7684\u76d1\u542c\u51fd\u6570\u3002<\/li>\n<li>FileReader.onload\uff1aload\u4e8b\u4ef6\uff08\u8bfb\u53d6\u64cd\u4f5c\u5b8c\u6210\uff09\u7684\u76d1\u542c\u51fd\u6570\uff0c\u901a\u5e38\u5728\u8fd9\u4e2a\u51fd\u6570\u91cc\u9762\u4f7f\u7528result\u5c5e\u6027\uff0c\u62ff\u5230\u6587\u4ef6\u5185\u5bb9\u3002<\/li>\n<li>FileReader.onloadstart\uff1aloadstart\u4e8b\u4ef6\uff08\u8bfb\u53d6\u64cd\u4f5c\u5f00\u59cb\uff09\u7684\u76d1\u542c\u51fd\u6570\u3002<\/li>\n<li>FileReader.onloadend\uff1aloadend\u4e8b\u4ef6\uff08\u8bfb\u53d6\u64cd\u4f5c\u7ed3\u675f\uff09\u7684\u76d1\u542c\u51fd\u6570\u3002<\/li>\n<li>FileReader.onprogress\uff1aprogress\u4e8b\u4ef6\uff08\u8bfb\u53d6\u64cd\u4f5c\u8fdb\u884c\u4e2d\uff09\u7684\u76d1\u542c\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u76d1\u542c<code>load<\/code>\u4e8b\u4ef6\u7684\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">\/\/ HTML \u4ee3\u7801\u5982\u4e0b\r\n\/\/ &lt;input type=\"file\" onchange=\"onChange(event)\"&gt;\r\n\r\nfunction onChange(event) {\r\n  var file = event.target.files[0];\r\n  var reader = new FileReader();\r\n  reader.onload = function (event) {\r\n    console.log(event.target.result)\r\n  };\r\n\r\n  reader.readAsText(file);\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c\u6bcf\u5f53\u6587\u4ef6\u63a7\u4ef6\u53d1\u751f\u53d8\u5316\uff0c\u5c31\u5c1d\u8bd5\u8bfb\u53d6\u7b2c\u4e00\u4e2a\u6587\u4ef6\u3002\u5982\u679c\u8bfb\u53d6\u6210\u529f\uff08<code>load<\/code>\u4e8b\u4ef6\u53d1\u751f\uff09\uff0c\u5c31\u6253\u5370\u51fa\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<p>FileReader \u6709\u4ee5\u4e0b\u5b9e\u4f8b\u65b9\u6cd5\u3002<\/p>\n<ul>\n<li>FileReader.abort()\uff1a\u7ec8\u6b62\u8bfb\u53d6\u64cd\u4f5c\uff0creadyState\u5c5e\u6027\u5c06\u53d8\u62102\u3002<\/li>\n<li>FileReader.readAsArrayBuffer()\uff1a\u4ee5 ArrayBuffer \u7684\u683c\u5f0f\u8bfb\u53d6\u6587\u4ef6\uff0c\u8bfb\u53d6\u5b8c\u6210\u540eresult\u5c5e\u6027\u5c06\u8fd4\u56de\u4e00\u4e2a ArrayBuffer \u5b9e\u4f8b\u3002<\/li>\n<li>FileReader.readAsBinaryString()\uff1a\u8bfb\u53d6\u5b8c\u6210\u540e\uff0cresult\u5c5e\u6027\u5c06\u8fd4\u56de\u539f\u59cb\u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u3002<\/li>\n<li>FileReader.readAsDataURL()\uff1a\u8bfb\u53d6\u5b8c\u6210\u540e\uff0cresult\u5c5e\u6027\u5c06\u8fd4\u56de\u4e00\u4e2a Data URL \u683c\u5f0f\uff08Base64 \u7f16\u7801\uff09\u7684\u5b57\u7b26\u4e32\uff0c\u4ee3\u8868\u6587\u4ef6\u5185\u5bb9\u3002\u5bf9\u4e8e\u56fe\u7247\u6587\u4ef6\uff0c\u8fd9\u4e2a\u5b57\u7b26\u4e32\u53ef\u4ee5\u7528\u4e8e<img alt=\"\" \/>\u5143\u7d20\u7684src\u5c5e\u6027\u3002\u6ce8\u610f\uff0c\u8fd9\u4e2a\u5b57\u7b26\u4e32\u4e0d\u80fd\u76f4\u63a5\u8fdb\u884c Base64 \u89e3\u7801\uff0c\u5fc5\u987b\u628a\u524d\u7f00data:<em>\/<\/em>;base64,\u4ece\u5b57\u7b26\u4e32\u91cc\u5220\u9664\u4ee5\u540e\uff0c\u518d\u8fdb\u884c\u89e3\u7801\u3002<\/li>\n<li>FileReader.readAsText()\uff1a\u8bfb\u53d6\u5b8c\u6210\u540e\uff0cresult\u5c5e\u6027\u5c06\u8fd4\u56de\u6587\u4ef6\u5185\u5bb9\u7684\u6587\u672c\u5b57\u7b26\u4e32\u3002\u8be5\u65b9\u6cd5\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u4ee3\u8868\u6587\u4ef6\u7684 Blob \u5b9e\u4f8b\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u53ef\u9009\u7684\uff0c\u8868\u793a\u6587\u672c\u7f16\u7801\uff0c\u9ed8\u8ba4\u4e3a UTF-8\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n<pre><code class=\"language-js\" lang=\"js\">\/* HTML \u4ee3\u7801\u5982\u4e0b\r\n  &lt;input type=\"file\" onchange=\"previewFile()\"&gt;\r\n  &lt;img src=\"\" height=\"200\"&gt;\r\n*\/\r\n\r\nfunction previewFile() {\r\n  var preview = document.querySelector('img');\r\n  var file    = document.querySelector('input[type=file]').files[0];\r\n  var reader  = new FileReader();\r\n\r\n  reader.addEventListener('load', function () {\r\n    preview.src = reader.result;\r\n  }, false);\r\n\r\n  if (file) {\r\n    reader.readAsDataURL(file);\r\n  }\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u4e2d\uff0c\u7528\u6237\u9009\u4e2d\u56fe\u7247\u6587\u4ef6\u4ee5\u540e\uff0c\u811a\u672c\u4f1a\u81ea\u52a8\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u7136\u540e\u4f5c\u4e3a\u4e00\u4e2a Data URL \u8d4b\u503c\u7ed9<code>&lt;img&gt;<\/code>\u5143\u7d20\u7684<code>src<\/code>\u5c5e\u6027\uff0c\u4ece\u800c\u628a\u56fe\u7247\u5c55\u793a\u51fa\u6765\u3002<\/p>\n<p><strong>\u63a8\u8350\u9605\u8bfb<\/strong><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093681&amp;idx=4&amp;sn=34daa04c9899497ace52bfc854021cb5&amp;chksm=be5bd19c892c588accd866c42c30fee8016fd678f51b7a496fff4da33d1c583c7677f705be0b&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u6a21\u578b\u2014Cookie<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093610&amp;idx=3&amp;sn=5abf8b0475a45239af3c4df0799de4f5&amp;chksm=be5bd247892c5b51ec79f0e41e74498abaeae605b7699be82ae5b5a365309fd0550f83f7dc25&amp;scene=21#wechat_redirect\">Navigator \u5bf9\u8c61\uff0cScreen \u5bf9\u8c61\u3002<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093605&amp;idx=3&amp;sn=d33708df74ef6ff2b2b466cacc39f910&amp;chksm=be5bd248892c5b5ef9132825d3cfc8f409691ac5926a25d1d17e9acf198942d7dc805ad24e65&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014window \u5bf9\u8c61<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093583&amp;idx=3&amp;sn=2c7418baffa86a68bbbf8be0666ebcf9&amp;chksm=be5bd262892c5b74cceb3082cc881ed13c539c1c09705e76c5673c59a2dda67cb719cebf24d4&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014\u6d4f\u89c8\u5668\u73af\u5883\u6982\u8ff0<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093700&amp;idx=3&amp;sn=985e857531714a3496bdf7248efdb524&amp;chksm=be5bd1e9892c58ff8ee0d77678b68f476db0d54eebd77897bf1d5c6bd5decf65410241673fc1&amp;scene=21#wechat_redirect\">XMLHttpRequest \u5bf9\u8c61<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093808&amp;idx=4&amp;sn=d28aca49deb6006fa436f06eaa00242e&amp;chksm=be5bd11d892c580b3b79b8baf388251229258e533dc0950f0a302d75388707ebd322b489ee04&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014\u540c\u6e90\u9650\u5236<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093824&amp;idx=4&amp;sn=b082d0b84b1f5fc3a92a61519e7f709a&amp;chksm=be5bd16d892c587bbdca83d4194194149c40d6f3ff56cb53ac79c87515b12aec2bb377738724&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014CORS \u901a\u4fe1<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093844&amp;idx=3&amp;sn=52664f94e9f1a9cb9b7350a90bf800cf&amp;chksm=be5bd179892c586fb5c65782fcc819be3e27b2317db7e2a9c0aca7942672116ecc5674f09ba8&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014Storage \u63a5\u53e3<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093921&amp;idx=3&amp;sn=6a6d0ea19a93a3d84411e322a62e9b06&amp;chksm=be5bd08c892c599a1a677afe1071f1b3ee53caec4bfc7da4541fd4c5c32c3726c74ad33532d1&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014History \u5bf9\u8c61<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649093966&amp;idx=3&amp;sn=9d8440c8233cf70a64ec3409bb6fa5cb&amp;chksm=be5bd0e3892c59f5baa64df6e7f58181dbf066cc20d877856bcced1d8387cae0f4c1f7f72bf4&amp;scene=21#wechat_redirect\">Location\u5bf9\u8c61\uff0cURL\u5bf9\u8c61\uff0cURLSearchParams;\u5bf9\u8c61<\/a><\/p>\n<p><a href=\"http:\/\/mp.weixin.qq.com\/s?__biz=MjM5MDA2MTI1MA==&amp;mid=2649094033&amp;idx=3&amp;sn=43601627bae912056159667af9e6b263&amp;chksm=be5bd03c892c592a4bd894f25b4ed5af0c91a50a418d549e4318bf649193a8d2a4ba37c93c5b&amp;scene=21#wechat_redirect\">\u3010JavaScript \u6559\u7a0b\u3011\u6d4f\u89c8\u5668\u2014ArrayBuffer\u5bf9\u8c61\uff0cBlob\u5bf9\u8c61<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001File \u5bf9\u8c61 File \u5bf9\u8c61\u4ee3\u8868\u4e00\u4e2a\u6587\u4ef6\uff0c\u7528\u6765\u8bfb\u5199\u6587\u4ef6\u4fe1\u606f\u3002\u5b83\u7ee7\u627f\u4e86 Blob \u5bf9\u8c61\uff0c\u6216\u8005\u8bf4\u662f\u4e00\u79cd\u7279\u6b8a\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[109,105],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3043"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3043"}],"version-history":[{"count":1,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3043\/revisions"}],"predecessor-version":[{"id":3044,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3043\/revisions\/3044"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}