jQuery.validate.js表单验证插件的使用
效果：
代码：
<!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"> ???<title>表单验证插件Validate</title> ???<script src="js/jquery-1.10.2.min.js"></script> ???<script src="js/jquery.validate.min.js"></script> ???<style> ???????body { ???????????background-color: #000; ???????} ???????????????form { ???????????width: 361px; ???????????margin: 80px auto; ???????????padding: 50px; ???????????border: 2px solid #666; ???????????box-shadow: 0 0 5px rgba(255, 255, 255, 0.2); ???????????background-color: #999; ???????????border-radius: 10px; ???????????box-sizing: border-box; ???????} ???????????????form>div { ???????????margin-bottom: 20px; ???????????color: #fff; ???????} ???????????????form>div>label { ???????????display: inline-block; ???????????width: 80px; ???????????text-align: center; ???????} ???????????????label.error { ???????????display: block; ???????????width: 100%; ???????????color: rgb(189, 42, 42); ???????????font-size: 12px; ???????????text-align: right; ???????????margin-top: 5px; ???????} ???????????????input { ???????????width: 170px; ???????????height: 20px; ???????????outline: none; ???????????background-color: #ddd; ???????????border: 1px solid #ddd; ???????????border-radius: 4px; ???????} ???????????????.submit { ???????????width: 170px; ???????????margin: 30px auto 0; ???????} ???????????????.submit input { ???????????background-color: #0099aa; ???????????color: #fff; ???????????border: 0; ???????????padding: 5px; ???????????height: 30px; ???????} ???</style></head><body> ???<form id="signupForm" action="" method="post"> ???????<div> ???????????<label for="name">姓名：</label> ???????????<input type="text" id="name" name="name"> ???????</div> ???????<div> ???????????<label for="email">邮箱：</label> ???????????<input type="email" id="email" name="email"> ???????</div> ???????<div> ???????????<label for="password">密码：</label> ???????????<input type="password" id="password" name="password"> ???????</div> ???????<div> ???????????<label for="confirm_password">确认密码：</label> ???????????<input type="password" id="confirm_password" name="confirm_password"> ???????</div> ???????<div class="submit"> ???????????<input type="submit" value="提交"> ???????</div> ???</form></body><script> ???$(function() { ???????$("#signupForm").validate({ ???????????rules: { ???????????????name: "required", ???????????????email: { ???????????????????required: true, ???????????????????email: true ???????????????}, ???????????????password: { ???????????????????required: true, ???????????????????minlength: 5 ???????????????}, ???????????????confirm_password: { ???????????????????required: true, ???????????????????minlength: 5, ???????????????????equalTo: "#password" ???????????????} ???????????}, ???????????messages: { ???????????????name: "请输入姓名", ???????????????email: { ???????????????????required: "请输入Email地址", ???????????????????email: "请输入正确的Email地址" ???????????????}, ???????????????password: { ???????????????????required: "请输入密码", ???????????????????minlength: "密码不能小于5个字符" ???????????????}, ???????????????confirm_password: { ???????????????????required: "请输入确认密码", ???????????????????minlength: "确认密码不能小于5个字符", ???????????????????equalTo: "两次输入的密码不一致" ???????????????} ???????????} ???????}); ???})</script></html>
jQuery.validate.js表单验证插件
原文地址：https://www.cnblogs.com/qianxuebing/p/9830220.html