abstract：<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<title>JQ选择器</title>
<style>
*{
padding: 0;
margin: 0;
font-size: 14px;
}
.box{
width: 1200px;
height: auto;
margin: 30px auto;
}
p.title{
font-weight: bold;
text-align: center;
font-size: 20px;
padding:20px 0;
}
.div1{
width: 30px;
height: 30px;
background: #f00;
}
.xz{
width: 100%;
height: 40px;
}
</style>
</head>
<body>
<div class="box">
<p class="title">JQ选择器</p>
<div class="xz">
<input type="submit" value="div变色 " id="bs" >
<input type="submit" value="li奇数变色 " id="li1" >
<input type="submit" value="li偶数变色" id="li2" >
<input type="submit" value="li大于4变色" id="li3" >
<input type="submit" value="li小于4变色" id="li4" >
<input type="submit" value="li第一个元素变色" id="li5" >
<input type="submit" value="li最后一个元素变色" id="li6" >
<input type="submit" value="[type]元素变色" id="li7" >
<input type="submit" value="w开头元素变色" id="li8" >
<input type="submit" value="移除被选中的元素" id="li9" >
</div>
<div class="div1"></div>
<ul>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
<li>我是列表</li>
</ul>
<form action="">
<input type="text" value="wwwaaaccc">
<input type="text" value="1wwwaaaccc">
<label><input type="checkbox" name="">看书</label>
<label><input type="checkbox" name="" checked>游泳</label>
<label><input type="checkbox" name="">游戏</label>
</form>
</div>
<script>
$(function(){
$('#bs').click(function(){
$('.div1').css('background','blue');
});
$('#li1').click(function(){
$('li:odd').css('color','#ff6700');
});
$('#li2').click(function(){
$('li:even').css('color','#ff6700');
});
$('#li3').click(function(){
$('li:gt(4)').css('color','#ff6700');
});
$('#li4').click(function(){
$('li:lt(4)').css('color','#ff6700');
});
$('#li5').click(function(){
$('li:first').css('color','#ff6700');
});
$('#li6').click(function(){
$('li:last').css('color','#ff6700');
});
$('#li7').click(function(){
$('input[type]').css('color','#ff6700');
});$('#li8').click(function(){
$('input[value ^=w]').css('color','#ff6700');
});
$('#li9').click(function(){
$(':checked').parent().remove();
});
})
</script>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-04-30 09:18:35
Teacher's summary：完成的不错。jq比js简单很多，常用可以代替js常规操作。继续加油。