abstract:<!DOCTYPE html><html><head><meta charset="utf-8"> <title>jQuery选择器</title> <script type="text/javascript"src="jquery-3.3.1.min.js"&
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery选择器</title>
<script type="text/javascript"src="jquery-3.3.1.min.js"></script>
<style type="text/css">
div{width: 100px;height: 100px; background: #ccc;margin-top: 20px;}
</style>
</head>
<body>
<script type="text/javascript">
//
表单选择器
$(document).ready(function(){
$(':enabled').css('background','pink')
$(':disabled').css('background','red')
$(':selected').css('color','blue')
$(':checked').parent().css('color','red')
})
</script>
<form>
输入框1<input type="text" name=""><br>
输入框2<input type="text" name=""><br>
输入框3<input type="text" name="" disabled><br>
输入框4<input type="text" name=""><br>
<select>
<option>摩羯座</option>
<option selected>双鱼座</option>
<option>射手座</option>
<option>天蝎座</option>
</select>
<br>
爱好:
<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>
</body>
</html>
Correcting teacher:天蓬老师Correction time:2019-06-03 09:55:52
Teacher's summary:考虑到与CSS3的兼容性, 推荐在表单中, 使用属性选择器, 替换掉jQuery自创的
例如: $(':input'), 应该用: $('input[type="text"]')之类的替代