<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
//全选，全不选；方法核心就是让所有的复选框的状态与全选复选框的状态一致
function checkall(){
var isChecked = (document.dataList.checkAll.checked == true);//全选框的状态
var elements = document.dataList.elements;//选出所有的元素
var counter = elements.length;
for(i=0;i<counter;i++){
var element = elements[i];
if(element.type=="checkbox" & element.name=="fileList"){//过滤需要的复选框
element.checked=isChecked;//将复选框的状态改为全选框的状态
}
}
}
</script>
</head>
<body>
<form name="dataList" method="post" action="">
全选:<input type="checkbox" id="checkAll" onclick="checkall()">
<table>
<tr>
<td><input type="checkbox" name="fileList" value="张三"></td>
</tr>
<tr>
<td><input type="checkbox" name="fileList" value="李四"></td>
</tr>
<tr>
<td><input type="checkbox" name="fileList" value="王五"></td>
</tr>
<tr>
<td><input type="checkbox" name="fileListssss" value="王五"></td>
</tr>
</table>
</form>
</body>
</html>
