<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.hide{
display: none;
}
</style>
</head>
<body>
<input id="i1" type="button" value="开关" />
<div class="c1 hide">假装现在有效果了</div>
<script src="jquery-1.12.4.js"></script>
<script>
$('#i1').click(function () {
#zs# 第一种方法
if($('.c1').hasClass('hide')){
$('.c1').removeClass('hide')
}else {
$('.c1').addClass('hide')
} #fzs#
//jquery实现方法
$('.c1').toggleClass('hide')
})
</script>
</body>
</html>
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通过索引实现菜单更方便
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* 这里是“吐槽小黑屋”，所有人可看，只保留当天信息。
