js获取表格中的数据转化为json字符串

1，所需数据

工商银行	1236545878965874562
建设银行	1236545698745632145

2，html

<table border="1">
   <thead>
      <tr>
         <td>开户行</td>
         <td>账号</td>
      </tr>
   </thead>
   <tbody id="myTable">

      <tr>
         <td>银行</td>
         <td>1234567989874569874</td>
      </tr>

　　　<tr>
         <td>银行</td>
         <td>1234567989874569874</td>
     </tr>

   </tbody>
</table>

3，js

var  banktrs=document.getElementById("myTable").rows;
var bankinfos = [];//新建一个数组
for(var i=0;i<banktrs.length;i++){
   var tds=banktrs[i].cells;
   var bankinfo={};
   bankinfo.bank=tds[0].innerHTML;
   bankinfo.account=tds[1].innerHTML;
    bankinfos.push(bankinfo);
}
alert(JSON.stringify(bankinfos));

4，结果
[{"bank":"工商银行","account":"1234567989874569874"},{"bank":"建设银行","account":"1234567989874569874"}]