<html>
<head>
<script>
function test(obj) {
alert(this.parentNode)
}
</script>
</head>
<body>
<table>
<tr>
<td><input value="sss" onclick=test(this)></input></td>
</tr>
</body>
</html>
求助，为什么上面的td框点击获取不到父节点？jsfunction
<head>
<script>
function test(obj) {
alert(this.parentNode)
}
</script>
</head>
<body>
<table>
<tr>
<td><input value="sss" onclick=test(this)></input></td>
</tr>
</body>
</html>
求助，为什么上面的td框点击获取不到父节点？jsfunction
function test(obj) {
alert(obj.parentNode);
}
<!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>
<script type="text/javascript">
function test(obj){
alert(obj.parentNode.tagName);
}
</script>
</head><body>
<table>
<tr>
<td><input type="button" value="sss" onclick="test(this)" /></td>
</tr>
</table>
</body>
</html>
<tr>
<td>
<div>
<input id='test' value="sss" onclick="test(this)" />
</div>
</td>
</tr>
function test(obj) {
obj = document.getElementById('test');
//alert(obj);
alert(obj.parentNode);
}
test();
this指向你要传进来的那个参数
<tr>
<td>
<div>
<input id='test' value="sss" type="text" onclick="test(this)" />
</div>
</td>
</tr>
</table>
function test(obj) {
alert(obj.parentNode);
}
函数里this.parentNode,这里的this指向的是window