全选全不选反选

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery.min.js">

</script>
</head>
<body>
<div>
兴趣爱好: <br> <br> <input type="checkbox" name="fav"
value="look" checked="checked"> 看书 <input type="checkbox"
name="fav" value="write"> 写字 <input type="checkbox"
name="fav" value="drow"> 画画 <input type="checkbox" name="fav"
value="dubao"> 读报 <input type="checkbox" name="fav"
value="TV"> 看电视
</div>

<div>
<input type="radio" name="hx" id="qx" value="1" > 全选
<input type="radio" name="hx" id="fx" value="2" > 反选
<input type="radio" name="hx" id="qbx" value="0"> 全不选
</div>
</body>
<script type="text/javascript">
window.onload=function(){
var input=document.getElementsByName("fav");
var qx=document.getElementById("qx");
var fx=document.getElementById("fx");
var qbx=document.getElementById("qbx");
qx.onclick=function(){
for(var i=0;i<input.length;i++){
input[i].checked=true;
}
}
qbx.onclick=function(){
for(var i=0;i<input.length;i++){
input[i].checked=false;
}
}
fx.onclick=function(){
for(var i=0;i<input.length;i++){
input[i].checked=!input[i].checked;
}
}
}
</script>
</html>

原文地址:https://www.cnblogs.com/javaweb2/p/6244417.html