JS多文件上传的实例代码

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我是靠谱客的博主矮小钢铁侠，最近开发中收集的这篇文章主要介绍JS多文件上传的实例代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

废话不多说了，具体实现代码如下所示：

<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script src="./jquery-1.9.1.min.js"></script>
</head>
<body>
<form id= "uploadForm" action= "" method= "post" enctype ="multipart/form-data">
 <h1 >多文件上传 </h1>
 <table>
  <tr>
   <td >上传文件： <input type ="file" name="file[]" id="file" multiple="multiple"/><a href="javascript：;" id="add">[+]</a></td>
  </tr>
  <tr>
   <td>
    <input type ="button" value="上传" id="but"/>
   </td>
  </tr>
 </table>
</form>
</body>
</html>
<script>
 //添加
 $(document).on("click","#add",function(){
  var str_tr = "<tr>"+$(this).parents("tr").html()+"</tr>";
  //js 替换字符串样式
  str_tr = str_tr.replace(/+/,'-');
  var new_str_tr = str_tr.replace(/add/,'del');
  $(this).parents("tr").after(new_str_tr);
 })
 //删除
 $(document).on("click","#del",function(){
  $(this).parents("tr").remove();
 })
 //文件上传
 $("#but").click(function(){
  var formData = new FormData($( "#uploadForm" )[0]);
  $.ajax({
   url: 'http://localhost/demo/selfWork_MVC/easymvc/app/Views/Index/upload.php' ,
   type: 'POST',
   data: formData,
   async: false,
   cache: false,
   contentType: false,
   processData: false,
   success: function (returndata) {
    alert(returndata);
   },
   error: function (returndata) {
    alert(returndata);
   }
  });
 })
</script>