{"id":206,"date":"2023-06-15T00:16:14","date_gmt":"2023-06-14T16:16:14","guid":{"rendered":"https:\/\/www.zhukaifu.cn\/?p=206"},"modified":"2023-06-15T00:16:14","modified_gmt":"2023-06-14T16:16:14","slug":"%e4%b8%8d%e7%86%9f%e6%82%89%e7%9a%84%e8%af%ad%e6%b3%95%e5%9f%ba%e7%a1%80","status":"publish","type":"post","link":"https:\/\/www.zhukaifu.cn\/?p=206","title":{"rendered":"\u4e0d\u719f\u6089\u7684\u8bed\u6cd5\u57fa\u7840"},"content":{"rendered":"\n<p>\u76f4\u63a5\u4e0a\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const reader = new FileReader()\n\n\/\/\u6b63\u786e\u7684\u4ee3\u7801\nreader.onload = e => {\n    let data;\n    if (typeof e.target.result === 'object') {\n        \/\/ \u628aArray Buffer\u8f6c\u5316\u4e3ablob \u5982\u679c\u662fbase64\u4e0d\u9700\u8981\n        data = window.URL.createObjectURL(new Blob(&#91;e.target.result]));\n    } else {\n        data = e.target.result;\n    }\n    this.cropperImg = data;\n    console.log(this.cropperImg)\n};\n\/\/\u9519\u8bef\u7684\u4ee3\u7801\nreader.onload = function(ev) {\n    let data;\n    \/\/ 1.1\u6587\u4ef6\u8bfb\u53d6\u5b8c\u6210\n    if (typeof ev.target.result === 'object') {\n        \/\/ \u628aArray Buffer\u8f6c\u5316\u4e3ablob \u5982\u679c\u662fbase64\u4e0d\u9700\u8981\n        data = window.URL.createObjectURL(new Blob(&#91;ev.target.result]));\n    } else {\n        data = ev.target.result;\n    }\n    this.cropperImg = data;\n    console.log(this.cropperImg)\n}\n\n<strong>\u5173\u952e<\/strong>\uff1a\u7bad\u5934\u8bed\u6cd5\u6ca1\u6709\u81ea\u5df1\u7684this<\/code><\/pre>\n\n\n\n<p>\u7bad\u5934\u51fd\u6570\u8bed\u6cd5\uff1a<a href=\"https:\/\/developer.mozilla.org\/zh-CN\/docs\/Web\/JavaScript\/Reference\/Functions\/Arrow_functions\">https:\/\/developer.mozilla.org\/zh-CN\/docs\/Web\/JavaScript\/Reference\/Functions\/Arrow_functions<\/a><\/p>\n\n\n\n<p><strong>\u603b\u7ed3<\/strong>\uff1a\u4e3b\u8981\u662f\u6ca1\u6709\u8ba4\u771f\u7684\u5b66\u8fc7 js \u7684\u57fa\u7840\u8bed\u6cd5\uff0c\u4e5f\u5f88\u5c11\u7528 js \u5f00\u53d1\uff0c\u5bfc\u81f4\u4e00\u4e2a\u5c0f\u95ee\u9898\u641e\u4e86\u5f88\u4e45\u6ca1\u641e\u5b9a\uff0c\u71ac\u591c\u628a\u81ea\u5df1\u71ac\u6b7b\u4e86\uff0c\u5f88\u591a\u65f6\u5019\u90fd\u662f\u8fd9\u6837\u5b50\uff0c\u5f00\u53d1 flutter \u7684\u65f6\u5019\u4e5f\u662f\u8fd9\u6837<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u76f4\u63a5\u4e0a\u4ee3\u7801 \u7bad\u5934\u51fd\u6570\u8bed\u6cd5\uff1ahttps:\/\/developer.mozilla.o&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-206","post","type-post","status-publish","format-standard","hentry","category-code-2"],"_links":{"self":[{"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/posts\/206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=206"}],"version-history":[{"count":2,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/posts\/206\/revisions"}],"predecessor-version":[{"id":208,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=\/wp\/v2\/posts\/206\/revisions\/208"}],"wp:attachment":[{"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhukaifu.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}