2_4表单选择器
![](https://img2023.cnblogs.com/blog/2531222/202302/2531222-20230227163107710-1342336390.gif)
表单选择器
关于表单项的选择器
:text :password :radio :checkbox :hidden :file :submit
:input 匹配所有 input, textarea, select 和 button 元素
关于表单项状态的选择器
:selected :checked :enabled :disabled :hidden :visible
注意$("input")和$(":input")的区别
$("input"):标签选择器,只匹配input标签,$(":input"): 匹配所有 input, textarea, select 和 button 元素
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>表单选择器</title>
<style type="text/css">
.myClass {
background-color: aqua;
}
</style>
<script src="js/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
//:text :password :radio :checkbox :hidden :file :submit
//var arr =$("input"); // 标签名选择器
//var arr = $("input[type=hidden]");
//var arr = $("input:hidden");
//:input 匹配所有 input, textarea, select 和 button 元素
//var arr = $("input,select,textarea,button");
//var arr = $(":input");
//:selected :checked :enabled :disabled
//var arr = $(":disabled");
//var arr = $(":enabled");
//var arr = $(":input:not(:disabled)");
//var arr = $(":checked");
//var arr = $(":selected");
//:hidden :visible
//var arr = $("input:hidden")
/* var arr = $(":input:visible")
for(var i = 0; i < arr.length; i++) {
console.info(arr[i]);
}*/
});
</script>
</head>
<body>
<h3>注册用户</h3>
<form action="" method="get">
<table border="1" width="40%">
<tr>
<td>用户名</td>
<td>
<input type="text" name="username" value="请输入姓名" />
<input type="hidden" name="username" id="username" value="请输入姓名" />
</td>
</tr>
<tr>
<td>密 码</td>
<td><input type="password" name="pwd" id="pwd" disabled="disabled" /></td>
</tr>
<tr>
<td>确认密码</td>
<td><input type="color" name="repwd" id="repwd" /></td>
</tr>
<tr>
<td>性别</td>
<td>
<input type="radio" name="sex" value="男" />男
<input type="radio" name="sex" checked="checked" value="女" />女
</td>
</tr>
<tr>
<td>年龄</td>
<td><input type="text" min="6" max="30" name="age" id="age" value="18" /></td>
</tr>
<tr>
<td>电子邮箱</td>
<td><input type="text" name="email" id="email" /></td>
</tr>
<tr>
<td>籍贯</td>
<td>
<select name="pro">
<option value="1">京</option>
<option value="2" selected="selected">津</option>
<option value="3">冀</option>
</select>
</td>
</tr>
<tr>
<td>自我介绍</td>
<td>
<textarea name="intro"></textarea>
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" />
<input type="reset" />
</td>
</tr>
</table>
</form>
</body>
</html>
![](https://img2023.cnblogs.com/blog/2531222/202302/2531222-20230227163107710-1342336390.gif)
![点击并拖拽以移动](https://img2023.cnblogs.com/blog/2531222/202302/2531222-20230227163107710-1342336390.gif)