{"id":92492,"date":"2020-03-10T19:18:22","date_gmt":"2020-03-10T11:18:22","guid":{"rendered":"http:\/\/4563.org\/?p=92492"},"modified":"2020-03-10T19:18:22","modified_gmt":"2020-03-10T11:18:22","slug":"%e8%af%b7%e6%95%99%e6%87%82-js-%e4%bb%a3%e7%a0%81%e7%9a%84%e6%9c%8b%e5%8f%8b%e4%b8%80%e4%b8%aa%e9%97%ae%e9%a2%98%ef%bc%8c-file-%e6%8e%a7%e4%bb%b6%e5%86%85%e5%ae%b9%ef%bc%8c%e5%a6%82%e4%bd%95%e7%94%a8","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=92492","title":{"rendered":"\u8bf7\u6559\u61c2 js \u4ee3\u7801\u7684\u670b\u53cb\u4e00\u4e2a\u95ee\u9898\uff0c file \u63a7\u4ef6\u5185\u5bb9\uff0c\u5982\u4f55\u7528 js \u6765\u5b9e\u65f6\u4fee\u6539\uff1f"},"content":{"rendered":"
\n
\n
\n

\u8bf7\u6559\u61c2 js \u4ee3\u7801\u7684\u670b\u53cb\u4e00\u4e2a\u95ee\u9898\uff0c file \u63a7\u4ef6\u5185\u5bb9\uff0c\u5982\u4f55\u7528 js \u6765\u5b9e\u65f6\u4fee\u6539\uff1f <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : mostkia <\/span> <\/i> 49<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u9996\u5148\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong>
js \u4e0d\u4f1a\u8bf7\u6c42\u6ca1\u6709\u4e0a\u4f20\u7684\u6587\u4ef6\u540d\u79f0\uff0c\u6240\u4ee5\u6743\u9650\u5e94\u8be5\u4e0d\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n

\u9047\u5230\u7684\u95ee\u9898\uff1a<\/strong>
\u56e0\u4e3a\u5ba2\u6237\u9700\u6c42\uff0c\u6709\u591a\u6b21\u9009\u4e00\u4e2a\u6216\u591a\u4e2a\u6587\u4ef6\uff0c\u6ee1\u610f\u540e\u70b9\u51fb\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u7684\u9700\u6c42\u3002\u6240\u4ee5\u5bf9\u5e94\u7684 FileList \u662f\u4e0d\u65ad\u53d8\u5316\u7684\uff0c\u53ea\u6709\u5ba2\u6237\u70b9\u51fb\u4e86\u201c\u4e0a\u4f20\u201d\u6309\u94ae\u540e FileList \u5217\u8868\u5185\u7684\u5185\u5bb9\u624d\u80fd\u7b97\u6570\u4e0a\u4f20\u670d\u52a1\u5668\u3002\u6240\u4ee5\u5c31\u4ea7\u751f\u4e86\u8fd9\u4e2a\u9700\u6c42\uff0c\u56e0\u4e3a js \u4ee3\u7801\u9700\u8981\u4e0d\u65ad\u6839\u636e\u9009\u62e9\u6846\u5185\u5df2\u6709\u7684\u5185\u5bb9\uff08\u5ba2\u6237\u53ef\u80fd\u4e0a\u4f20\u7684\u5185\u5bb9\u4e0d\u6ee1\u610f\u53c8\u5220\u4e86\u7684\uff09\uff0c\u4e0d\u65ad\u4fee\u6539 input \u4e0a\u4f20\u63a7\u4ef6\u5185\u7684\u4fe1\u606f\u3002\u4f46\u6211\u53d1\u73b0 files \u5bf9\u8c61\u4f3c\u4e4e\u662f\u9501\u5b9a\u7684\uff0ckey \u4e5f\u662f\u6570\u5b57\u7c7b\u578b\u7684\uff0c\u4f3c\u4e4e\u6ca1\u6cd5\u4fee\u6539\u3002\u5177\u4f53\u662f\u6211\u7684\u65b9\u6cd5\u9519\u4e86\u5417\uff1f<\/p>\n

\u5982\u4e0b\u56fe\uff1a \"\u8bf7\u6559\u61c2<\/p>\n

\u4e0d\u8fc7\u7c7b\u4f3c test3.files = test1.files<\/strong> \u8fd9\u79cd\u65b9\u6cd5\u53c8\u7684\u786e\u989d\u53ef\u4ee5\u751f\u6548\uff0c\u8bf4\u660e\u8be5\u5c5e\u6027\u4e0d\u662f\u53ea\u8bfb\u7684\uff0c\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff0c\u671f\u5f85\u6709\u61c2\u8fd9\u65b9\u9762\u5f97\u670b\u53cb\u89e3\u7b54\u4e00\u4e0b\uff0c\u662f\u5426\u6709\u4ec0\u4e48\u89e3\u51b3\u65b9\u6848<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (6<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ragnaroks <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53ea\u9700\u8981\u4e00\u4e2a input,\u5f53\u7528\u6237\u9009\u62e9\u6587\u4ef6\u540e,\u76f4\u63a5\u5728 onload \u628a\u6587\u4ef6\u8bfb\u5230\u5185\u5b58
    const filesArray=[];
    input.onload=function(){ filesArray.push(file); }
    \u7528\u6237\u5220\u9664\u7684\u65f6\u5019\u904d\u5386\u5e76 slice \u5373\u53ef <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ragnaroks <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u53ef\u4ee5\u53c2\u8003\u4e0b\u5404\u79cd\u56fe\u5e8a,\u53ef\u4ee5\u9009\u62e9\u5f88\u591a\u6587\u4ef6,\u70b9\u4e86\u4e0a\u4f20\u624d\u771f\u6b63\u4e0a\u4f20,\u6ca1\u4e0a\u4f20\u4e4b\u524d\u53ef\u4ee5\u5220\u9664,\u8fd9\u5dee\u4e0d\u591a\u521a\u597d\u548c\u4f60\u7684\u9700\u6c42\u4e00\u81f4 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : mostkia <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ragnaroks \u597d\u7684\uff0c\u8c22\u8c22\u3002\u6628\u665a\u67e5\u8d44\u6599\u67e5\u4e86\u5f88\u4e45\uff0c\u53d1\u73b0 FileList \u5217\u8868\u7684\u786e\u662f\u53ea\u8bfb\u7684\uff0c\u53ea\u80fd\u6e05\u7a7a\uff0c\u4e0d\u80fd\u4fee\u6539\u3002\u53ef\u80fd\u662f\u8003\u8651\u5b89\u5168\u6027\u7684\u539f\u56e0\uff0c\u6240\u4ee5\uff0c\u76ee\u524d\u6765\u770b\uff0c\u53ea\u80fd\u81ea\u5df1\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5217\u8868\u4e86\u3002\u901a\u8fc7 formData \u65b9\u5f0f\u4e0a\u4f20\u3002\u53ea\u4e0d\u8fc7\u8fd9\u6837\u517c\u5bb9\u6027\u53ef\u80fd\u4f1a\u6709\u5f71\u54cd\uff0c\u800c\u4e14\u8fd9\u6837\u5199\u51fa\u6765\u7684\u6587\u4ef6\u4e0a\u4f20\u7ec4\u4ef6\uff0c\u65e0\u6cd5\u4f5c\u4e3a\u5176\u4ed6\u8868\u5355\u7684\u4e00\u4e2a\u5b50\u529f\u80fd\u8c03\u7528\uff08 formData \u53ea\u80fd\u50a8\u5b58\u5728\u5185\u5b58\u91cc\uff0c\u6ca1\u6cd5\u91cd\u65b0\u5199\u56de input \u91cc\uff0c\u5355\u7eaf\u901a\u8fc7 submit \u63d0\u4ea4\uff09\u6211\u4e2a\u4eba\u76ee\u524d\u66f4\u504f\u5411\u4e8e\u4f7f\u7528 base64 \u65b9\u6cd5\uff0c\u5c06\u9700\u8981\u7684\u6587\u4ef6\u540d\u3001\u7c7b\u578b\u3001\u5927\u5c0f\u4e4b\u7c7b\u7684\u4fe1\u606f\uff0c\u548c base64 \u5185\u5bb9\u7ec4\u6210 json\uff0c\u5b9e\u65f6\u5b58\u5165 input \u5185\u56de\u4f20\u56de\u670d\u52a1\u5668\u3002\u53ea\u662f\u8fd9\u79cd\u65b9\u6cd5\u65e0\u6cd5\u5904\u7406\u975e\u5e38\u5927\u7684\u6587\u4ef6\uff0c\u6bd4\u5982\u4e00\u4e2a 200mb \u7684\u6587\u4ef6\uff0c\u7f16\u7801\u7684\u65f6\u95f4\u5c06\u4f1a\u975e\u5e38\u7684\u4e45\u3002\u4f46\u56e0\u4e3a\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\uff0c\u5904\u7406\u975e\u5e38\u65b9\u4fbf\u6240\u4ee5\u901a\u7528\u6027\u6765\u8bb2\u7684\u786e\u66f4\u53ef\u9760\u4e00\u4e9b\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Sendya <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9898\u4e3b\u6253\u7b97\u517c\u5bb9 IE8 \u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : mostkia <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Sendya \u4e3b\u8981\u662f\u9700\u8981\u80fd\u517c\u5bb9\u5355\u72ec\u4f7f\u7528\uff08 ajax \uff09\u548c\u96c6\u6210\u5728\u5176\u4ed6\u8868\u5355\u4e2d\u505a\u5b50\u529f\u80fd\u4f7f\u7528\u7684\u573a\u666f\uff0cformData \u65b9\u5f0f\u6ca1\u6cd5\u53cd\u5411\u5199\u5165\u5230 input\uff0c\u7eaf\u8868\u5355\u6a21\u5f0f\u4e0b\u4f7f\u7528\u53d7\u9650\u3002\u81f3\u4e8e\u517c\u5bb9\u6027\uff0c\u76ee\u524d\u6ca1\u8003\u8651\u592a\u591a\uff0c\u80fd\u505a\u5230\u517c\u5bb9\u81ea\u7136\u6700\u597d\uff0c\u505a\u4e0d\u5230\u4e5f\u6ca1\u4e8b\uff0c\u4e00\u822c IE9 \uff08 win7 \u7cfb\u7edf\uff09\u90fd\u5feb\u6dd8\u6c70\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : w292614191 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u770b\u8d77\u6765\uff0c\u4f60\u9700\u8981\u4e00\u4e2a\u6587\u4ef6\u4e0a\u4f20\u63d2\u4ef6\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u8bf7\u6559\u61c2 js \u4ee3\u7801\u7684\u670b\u53cb\u4e00\u4e2a\u95ee\u9898\uff0c…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/92492"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=92492"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/92492\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=92492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=92492"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=92492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}