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selectall-no.html
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selectall-no.html
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<!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></title>
<!-- 引入jQuery -->
<script src="js/scripts/jquery.js"></script>
<style>
#test{
width: 400px;
height: 600px;
margin: 0 auto;
}
#choosebtn input{
margin: 20px;
}
.choose input{
width: 20px;
height: 20px;
margin-left:20px;
margin-top:20px;
}
</style>
<script>
$(function(){
/*全选全不选写法1*/
// $('.selectallno').click(function(){
// if(this.checked){
// $('.choose input').attr("checked",true)
// }else{
// console.log(2)
// $('.choose input').attr("checked",false)
// }
// })
/*全选全不选写法2*/
// $('.selectallno').click(function(){
// $('.choose input').attr("checked",this.checked)
// })
/*全选全不选写法3*/
$('.selectallno').click(function(){
var flag=this.checked;
$('[name=items]:checkbox').attr("checked",flag)
})
/*selectallno复选框关联$('.choose input')复选框方法1*/
$('.choose input').click(function(){
var flag=true;
$('.choose input').each(function(){
console.log(this.checked)
if(!this.checked){
//console.log(1)
flag=false;
}
})
$('.selectallno').attr("checked",flag)
})
// /*selectallno复选框关联$('.choose input')复选框方法2*/
// $('.choose input').click(function(){
// var temp
// $('.choose input').each(function(){
// if(this.checked){
// temp=$('.choose input:checked').length
// }
// })
// console.log(temp)
// console.log($('.choose input').length===temp)
// $('.selectallno').attr("checked",$('.choose input').length===temp)
// })
})
</script>
<body>
<form id="test">
<fieldset>
<legend>选择你最喜欢的运动：</legend>
<input type="checkbox" class="selectallno" value="全选/全不选">全选/全不选</br>
<div class="choose">
<input type="checkbox" name="items" value="足球">足球
<input type="checkbox" name="items" value="羽毛球">羽毛球
<input type="checkbox" name="items" value="篮球">篮球
</div>
<div id="choosebtn">
<input type="button" class="submit" value="提交">
</div>
</fieldset>
</form>
</body>
</html>