js反选

<!DOCTYPE html>
<html>


<head>
<meta charset="UTF-8">
<title></title>
</head>


<body>
<button type="button" id="btn">反选</button>
<ul>
<li>
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />


</li>
</ul>
<script>
//实现反选
var oBtn = document.getElementById("btn")
var oInput = document.getElementsByTagName("input")
// oInput[0].checked=true


oBtn.onclick = function() {
for(var i = 0; i < oInput.length; i++) {
oInput[i].checked =!oInput[i].checked
}
}
</script>
</body>


</html>
posted on 2018-06-04 10:57  革命军总部  阅读(121)  评论(0)    收藏  举报