怎么获取table中td里input类型的值？

   <table border="1" id="tableList">
     <tr>
          <td width="50" >1.0</td>
          <td  width="50"><b>1.1</b></td>
          <td  width="50"><b>1.2</b></td>
          <td width="50"><b> <input type=text name="a"  value="aa"> </b></td>
     </tr>
     <tr>
          <td width="50" class="auto"><b>2.0</b></td>
          <td  width="50"><b>2.1</b></td>
          <td width="50"><b>2.2</b></td>
          <td " width="50"><b> <input type=text name="b" > </b></td>
     </tr>
        <tr >
          <td width="50" class="auto"><b>3.0</b></td>
          <td class="auto" width="50"><b>3.1</b></td>
          <td class="auto" width="50"><b>3.2</b></td>
          <td class="auto" width="50"><b> <input type=text name="c" > </b></td>
     </tr>
     </table>怎么循环获取每行TD的值，input中的值一直无法获取。其他的可以

解决方案 »

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你是怎么取的？另外，
<td " width="50"><b> <input type=text name="b" > </b></td>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
   <table border="1" id="tableList">
     <tr>
          <td width="50" >1.0</td>
          <td  width="50"><b>1.1</b></td>
          <td  width="50"><b>1.2</b></td>
          <td width="50"><b> <input type="text" name="a"  value="aa" /> </b></td>
     </tr>
     <tr>
          <td width="50" class="auto"><b>2.0</b></td>
          <td  width="50"><b>2.1</b></td>
          <td width="50"><b>2.2</b></td>
          <td width="50"><b> <input type="text" name="b" value="bb" /> </b></td>
     </tr>
        <tr >
          <td width="50" class="auto"><b>3.0</b></td>
          <td class="auto" width="50"><b>3.1</b></td>
          <td class="auto" width="50"><b>3.2</b></td>
          <td class="auto" width="50"><b> <input type="text" name="c" value="cc" /> </b></td>
     </tr>
     </table>
<script type="text/javascript">
var objInput = document.getElementById("tableList").getElementsByTagName("input");
for (i = 0; i < objInput.length; i++) alert(objInput[i].value);
</script>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
   <table border="1" id="tableList">
     <tr>
          <td width="50" >1.0</td>
          <td  width="50"><b>1.1</b></td>
          <td  width="50"><b>1.2</b></td>
          <td width="50"><b> <input type="text" name="a"  value="aa" /> </b></td>
     </tr>
     <tr>
          <td width="50" class="auto"><b>2.0</b></td>
          <td  width="50"><b>2.1</b></td>
          <td width="50"><b>2.2</b></td>
          <td width="50"><b> <input type="text" name="b" value="bb" /> </b></td>
     </tr>
        <tr >
          <td width="50" class="auto"><b>3.0</b></td>
          <td class="auto" width="50"><b>3.1</b></td>
          <td class="auto" width="50"><b>3.2</b></td>
          <td class="auto" width="50"><b> <input type="text" name="c" value="cc" /> </b></td>
     </tr>
     </table>
<script type="text/javascript">
var objInput = document.getElementById("tableList").getElementsByTagName("input");
for (i = 0; i < objInput.length; i++) alert(objInput[i].value);
</script>
</body>
</html>
如果只是想取出Input的值，可以试试：
jQuery('tr td input').each(function(){
alert(jQuery(this).val());
})
<script>
window.onload=function(){
   var input=document.getElementById("tableList").getElementByTagName("input");
    for(var i=0;i<input.length;i++)
    {
     if(input[i].type=='text')
     {alert(input[i].value);}//一个一个警告过去显示input类型的值!
     }
   }
</script>是这样的吧！