How to implement the function of adding attachments in javascript

How to implement the function of adding attachments in javascript_javascript skills

WBOY

Release： 2016-05-16 15:31:26

Original

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We often use adding attachments in emails, now we can simply apply it:
Rendering:

Implementation principle:
The main idea of using table tags: using table tags
1. After clicking on the text, it will be automatically created (originally it was created by yourself/, now after getting the table object, you can insertRow() insertCell()) to create rows and columns
2. When deleting, remove it through the parent node
Core code:

function creatMail(){ 
   var tab=document.getElementById("tabid"); 
   var tr=tab.insertRow();//插入一行 
   var td=tr.insertCell();//插入一列 
   var td2=tr.insertCell();//插入一列 
   td.innerHTML="<input type='file' value='选择文件'/> "; 
   /* 
 
   td2.innerHTML="<a href='javascript:void(0)' onclick='Delrows(this)'>删除</a>"; 
 */ 
   td2.innerHTML="<img src='11.jpg' alt='删除' onclick='Delrows(this)'>"; 
 
  }

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The entire code is as follows (tips: just add it)

<!DOCTYPE html> 
<html> 
 <head> 
 <!--主要思想：采用table标签方式 
  1,点击文字之后，就自动创建（原先是自己/创建，现在拿到table对象之后，可以insertRow() insertCell()）创建行和列 
  2，删除的时候通过父节点来移除 
 --> 
  
 <title>AddMail.html</title> 
  
 <link rel="stylesheet" type="text/css" href="1.css"> 
 <script type="text/javascript"> 
  function creatMail(){ 
   var tab=document.getElementById("tabid"); 
   var tr=tab.insertRow();//插入一行 
   var td=tr.insertCell();//插入一列 
   var td2=tr.insertCell();//插入一列 
   td.innerHTML="<input type='file' value='选择文件'/> "; 
   /* 
 
   td2.innerHTML="<a href='javascript:void(0)' onclick='Delrows(this)'>删除</a>"; 
 */ 
   td2.innerHTML="<img src='11.jpg' alt='删除' onclick='Delrows(this)'>"; 
 
  } 
   
  function Delrows(node){//当前对象是<a>里面 
    
   var tr=node.parentNode.parentNode;//tr对象 
   tr.parentNode.removeChild(tr);//tr的父对象table移除子节点 
  } 
 </script> 
 </head> 
 
 <body> 
 <table id="tabid"> 
 <tr> 
  <td><a href="javascript:void(0)" onclick="creatMail()">添加附件</a></td> 
 </tr> 
  
 </table> 
 </body> 
</html>

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The above is the entire content of this article. It shares the implementation principle, core code, and everyone’s favorite JavaScript code to implement the attachment function. I hope it will be helpful to everyone’s learning.