原生javascript上传图片带进度条【实例分享】

(编辑：jimmy 日期: 2026/1/13 浏览：2)
javascript代码：
 ;
 (function(w) {
 var error = "上传控件不支持您的浏览器！";
 // 构造函数
 function UploadImg(option) {
  $u = this;
  $u.option = option;
  $u.init($u.option);
 }
 UploadImg.prototype = {
  //初始化
  init: function() {
  var $u = this;  
  //template
  $u.addupLoader =
   '<form enctype="multipart/form-data">' +
   '<label style="display:block;width:100%;cursor:pointer;height:100%;position: absolute;">' +
   '<input class="kechenFengMian" type="file" capture="camera" name="file"/>' +
   '</label>' +
   '</form> ' +
   '<img src="/UploadFiles/2021-04-02/">

PHP代码：


<"url"=>$path
);
$json=json_encode($arr); //json
echo $json;
"htmlcode">

 .couser-img-upload {
  width:280px;
  height:160px;  
  cursor:pointer;
  position: relative;
  overflow: hidden;
  background:url(add-bg-upload1.jpg);  
 }
 .couser-img-upload:hover{
  border: 2px solid #00caac;
  background:url(add-bg-upload.jpg);
 }
 .kechenFengMian {
  display:none;
 }
 .upload-progress{
  display: none;
  width: 90%;
  position: absolute;  
  overflow: hidden;
  border:1px solid #00caac;
  border-radius: 8px;
  top: 50%;
  margin-top: -7.5px;
  left: 50%;
  padding: 2px;
  margin-left:-46%;
  font-size: 12px;
 }
 .upload-progress .upload-son{
  display: inline-block;
  background: #00caac;
  border-radius: 8px;
  text-align: center;
  color: #fff;
 }
 .mask-Div{
  position: absolute;
  top: -300px;
  width: 100%;
  height: 100%;
 }
 .mask-Div .mask-show{
  position: absolute;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: 0.5;
 }
 .mask-Div .button-div{
  width: 140px;
  height: 50px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -70px;
  margin-top: -25px;
 }
 .mask-Div .button-div span{
  display: block;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  background:url(tianjiashanchu.png) no-repeat;
 }
 .mask-Div .button-div span.upload-btn{  
  background-position: 0px 0px;
  float: left;
 }
 .mask-Div .button-div span.deleteImg-btn{
  background:url(tianjiashanchu.png) no-repeat;
  background-position: -50px 0px ;
  float: right;
 }
 .mask-Div .button-div span.upload-btn:hover{
  background-position: 0px -50px ;
 }
 .mask-Div .button-div span.deleteImg-btn:hover{
  background-position: -50px -50px ;
 }



Html代码：


<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title></title>
  <script type="text/javascript" src="/UploadFiles/2021-04-02/uploadImg.js">

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