<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script type="text/javascript" src="../js/jquery-3.2.1.min.js"></script>
<script>
$(function () {
//为包含id属性的p元素设置颜色属性
$("p[id]").css("color", "blue");
//为包含class="222"的p元素设置颜色属性
$("p[class='222']").css("color", "pink");
//为包含id属性且id的属性值以'a'开头的span元素设置颜色
$("span[id^='a']").css("color", "green");
//为包含id属性且id的属性值以'g'结尾的span元素设置颜色
$("span[id$='g']").css("color", "red");
//组合属性包含id='gg'name='11'的span元素设置颜色
$("span[id='gg'][name='11']").css("color", "blue");
//选取属性id里包含'123'的span元素设置颜色
$("span[id*='123']").css("color", "purple");
//属性id!="btn1"里按钮设置颜色
$("input[id!='btn1']").css("color",'green');
})
</script>
</head>
<body>
<p id="111">bbbb</p>
<p id>ccc</p>
<p class="222">aaaaaaaaaaaaa</p>
<p class>ddddd</p>
<span id="a111111">QQQQQQQQQQQ</span>
<span id="abbb">FFFFFFFFFFFFFF</span>
<span id="ccccg">HHHHHHHH</span>
<span id="gg" name="11">TTTTTT</span>
<span id="123">WWWWWW</span>
<span id="12345">YYYYYYYY</span>
<input type="button" id="btn1" value="111">
<input type="button" id="btn2" value="222">
</body>
</html>