<HTML>
<head>
</head>
<script>
function quanxuan(){
var kuang=document.getElementsByClassName("duoxuan");
for(var i=0;i<kuang.length;i++){
kuang[i].checked=true;
}
}
function quxiao(){
var kuang=document.getElementsByClassName("duoxuan");
for(var i=0;i<kuang.length;i++){
kuang[i].checked=false;
}
}
function fanxuan(){
var kuang=document.getElementsByClassName("duoxuan");
for(var i=0;i<kuang.length;i++){
if(kuang[i].checked==true){
kuang[i].checked=false;
}else{
kuang[i].checked=true;
}
}
}
</script>
<body>
<a href="javascript:viod(0)" onclick="quanxuan()">全选</a>
<a href="javascript:viod(0)" onclick="quxiao()">取消</a>
<a href="javascript:viod(0)" onclick="fanxuan()">反选</a>
<br>
<input class="duoxuan" type="checkbox">狼<br>
<input class="duoxuan" type="checkbox">浪<br>
<input class="duoxuan" type="checkbox">郎<br>
<input class="duoxuan" type="checkbox">朗<br>
<input class="duoxuan" type="checkbox">良<br>
<input class="duoxuan" type="checkbox">年<br>
</body>
</HTML>`多选的 全选，取消全选以及反选
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转载自blog.csdn.net/Dilraba123456/article/details/81628184
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