js 输入框正则表达式(菜鸟必看教程)

2019-11-19 17:30:31

字体：大中小

来源：转载

供稿：网友

源码如下所示：

 <!DOCTYPE html><html>	<head>		<meta charset="UTF-8">		<title></title>	</head>	<body>		用户名:<input type="text"name = "user" id="user"/>			 <span id="userSpan" style="font-size: 16pt;"></span>		<br />		密码:<input type="text"name = "pwd" id="pwd"/>			<span id="pwdSpan" style="font-size: 16pt;"></span>		<br />		确认密码:<input type="text"name = "pwd2" id="pwd2"/>		<span id="pwd2Span" style="font-size: 16pt;"></span>		<br />		邮箱:<input type="text"name = "email" id="email"/>		<span id="emailSpan" style="font-size: 16pt;"></span>		<br />		手机号:<input type="text"name = "phone" id="phone"/>		<span id="phoneSpan" style="font-size: 16pt;"></span>		<br />		身份证号:<input type="text"name = "status" id="status"/>		<span id="statusSpan" style="font-size: 16pt;"></span>		<br />		地址:<input type="text"name = "address" id="address"/>		<span id="addressSpan" style="font-size: 16pt;"></span>		<br />		<input type="button" value="校验" onclick="verify()" />		<script type="text/javascript">			function verify() {								//用户名验证				var user = "";				user = document.getElementById("user").value;				var pattl = /^[A-Z][a-zA-Z0-9_]{6,20}$/;				var result = pattl.test(user.trim());				if (result) {					document.getElementById("userSpan").innerHTML = "√"					document.getElementById("userSpan").style.fontSize = "20pt"				} else {					document.getElementById("userSpan").innerHTML = "×"				}				//密码验证				var pwd = "";				pwd = document.getElementById("pwd").value;				var pattl = /^[A-Z][a-zA-Z0-9_]{8,15}$/;				var result = pattl.test(pwd.trim());				if (result) {					document.getElementById("pwdSpan").innerHTML = "√"					document.getElementById("pwdSpan").style.fontSize = "20pt"				} else {					document.getElementById("pwdSpan").innerHTML = "×"				}								//确认密码验证				var pwds = "";				pwds = document.getElementById("pwd2").value;				var pattl = /^[A-Z][a-zA-Z0-9_]{8,15}$/;				var result = pattl.test(pwds.trim());				if (result) {					document.getElementById("pwd2Span").innerHTML = "√"					document.getElementById("pwd2Span").style.fontSize = "20pt"				} else {					document.getElementById("pwd2Span").innerHTML = "×"				}													//邮箱验证				var emails = "";				emails = document.getElementById("email").value;				var pattl = /^[A-z0-9]+@[a-z0-9]+.com$/;				var result = pattl.test(emails.trim());				if (result) {					document.getElementById("emailSpan").innerHTML = "√"					document.getElementById("emailSpan").style.fontSize = "20pt"				} else {					document.getElementById("emailSpan").innerHTML = "×"				} 				//手机号验证				var phones = "";				phones = document.getElementById("phone").value;				var pattl = /^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])/d{8}$/;				var result = pattl.test(phones.trim());				if (result) {					document.getElementById("phoneSpan").innerHTML = "√"					document.getElementById("phoneSpan").style.fontSize = "20pt"				} else {					document.getElementById("phoneSpan").innerHTML = "×"				}								//身份证号验证				var status1 = "";				status1 = document.getElementById("status").value;				var pattl = /^([1-9]){1}[0-9]{17}|[1-9]{1}[0-9]{16}(x|X)?$/;				var result = pattl.test(status1.trim());				if (result) {					document.getElementById("statusSpan").innerHTML = "√"					document.getElementById("statusSpan").style.fontSize = "20pt"				} else {					document.getElementById("statusSpan").innerHTML = "×"				}				//地址验证				var addres = "";				addres = document.getElementById("address").value;				var pattl = /^[/u4e00-/u9fa5]+[/u4E00-/u9FA5A-Za-z0-9_]+$/;				var result = pattl.test(addres.trim());				if (result) {					document.getElementById("addressSpan").innerHTML = "√"					document.getElementById("addressSpan").style.fontSize = "20pt"				} else {					document.getElementById("addressSpan").innerHTML = "×"				}							}  		</script>	</body></html>

效果图如下：