直接贴代码
<html >
<head>
<title>无标题文档</title>
<script language="javascript">
var obj = document.getElementsByName("sdf")[0];
alert(obj.value);
var str = obj.parentNode.parentNode.nextSibling.childNodes[1].value;
alert(str);
</script>
</head><body>
<table border="1">
<tr>
<td>aaa</td>
<td>bbb</td>
</tr>
<tr>
<td>ccc</td>
<td><input name="sdf" type="text" id="12" value="ddd"></span></td>
</tr>
<tr>
<td><span><input name="sdf" type="text" value="eee"></span>sdfsdf</td>
<td>fff</td>
</tr>
</table>
</body>
</html>
一直报错,说是obj.value为空或者不是对象,搞不懂为什么?
<html >
<head>
<title>无标题文档</title>
<script language="javascript">
var obj = document.getElementsByName("sdf")[0];
alert(obj.value);
var str = obj.parentNode.parentNode.nextSibling.childNodes[1].value;
alert(str);
</script>
</head><body>
<table border="1">
<tr>
<td>aaa</td>
<td>bbb</td>
</tr>
<tr>
<td>ccc</td>
<td><input name="sdf" type="text" id="12" value="ddd"></span></td>
</tr>
<tr>
<td><span><input name="sdf" type="text" value="eee"></span>sdfsdf</td>
<td>fff</td>
</tr>
</table>
</body>
</html>
一直报错,说是obj.value为空或者不是对象,搞不懂为什么?
<html >
<head>
<title>无标题文档 </title> </head> <body>
<table border="1">
<tr>
<td>aaa </td>
<td>bbb </td>
</tr>
<tr>
<td>ccc </td>
<td> <input name="sdf" type="text" id="12" value="ddd"> </span> </td>
</tr>
<tr>
<td> <span> <input name="sdf" type="text" value="eee"> </span>sdfsdf </td>
<td>fff </td>
</tr>
</table>
</body>
<script language="javascript">
var obj = document.getElementsByName("sdf")[0];
alert(obj.value);
var str = obj.parentNode.parentNode.nextSibling.childNodes[1].value;
alert(str);
</script>
</html>