Jquery实现多选框的基本功能

Jquery多选框的基本操作：支持全选、反选、取消全选的功能

HTML正文：

<br><br><input type="checkbox" id="c1">全选/全不选<br>兴趣爱好：<br><input type="checkbox" name="interst" value="basketball">篮球<input type="checkbox" name="interst" value="football">足球<input type="checkbox" name="interst" value="bedminton">羽毛球<br><input type="button" id="b1" value="全选"><input type="button" id="b2" value="全不选"><input type="button" id="b3" value="反选"><input type="button" id="b4" value="显示">

Javascript操作代码：

$("#c1").click(function(){if(this.checked){    $("input[name='interst']").attr("checked","checked");}else{    //$("input[name='interst']").attr("checked",""); //等价于    $("input[name='interst']").removeAttr("checked");}});$("#b1").click(function(){    $("input[name='interst']").attr("checked","checked");});$("#b2").click(function(){    $("input[name='interst']").attr("checked","");});$("#b3").click(function(){    $("input[name='interst']").each(function(){    if(this.checked){        this.checked="";    }else{        this.checked="checked";    }    });});$("#b4").click(function(){$("input[name='interst']:checked").each(function(){    alert(this.value);});});

效果：