validate插件
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>validate插件</title> <script type="text/javascript" src="jquery-3.2.1.js"></script> <script type="text/javascript" src="jquery.validate.js"></script> <script type="text/javascript" src="messages_zh.js"></script> <script> $().ready(function() { $("#signupForm").validate({ rules: { firstname: "required", lastname: "required", username: { required: true, minlength: 2 }, password: { required: true, minlength: 5 }, confirm_password: { required: true, minlength: 5, equalTo: "#password" }, email: { required: true, email: true }, agree: "required" }, messages: { firstname: "请输入您的名字", lastname: "请输入您的姓氏", username: { required: "请输入用户名", minlength: "用户名必需由两个字母组成" }, password: { required: "请输入密码", minlength: "密码长度不能小于 5 个字母" }, confirm_password: { required: "请输入密码", minlength: "密码长度不能小于 5 个字母", equalTo: "两次密码输入不一致" }, email: "请输入一个正确的邮箱", agree: "请接受我们的声明", } }); }); </script> <style> .error{ color:red; } </style> </head> <body> <form class="cmxform" id="signupForm" method="get" action=""> <fieldset> <legend>验证完整的表单</legend> <p> <label for="firstname">名字</label> <input id="firstname" name="firstname" type="text"> </p> <p> <label for="lastname">姓氏</label> <input id="lastname" name="lastname" type="text"> </p> <p> <label for="username">用户名</label> <input id="username" name="username" type="text"> </p> <p> <label for="password">密码</label> <input id="password" name="password" type="password"> </p> <p> <label for="confirm_password">验证密码</label> <input id="confirm_password" name="confirm_password" type="password"> </p> <p> <label for="email">Email</label> <input id="email" name="email" type="email"> </p> <p> <label for="agree">请同意我们的声明</label> <input type="checkbox" class="checkbox" id="agree" name="agree"> </p> <p> <input class="submit" type="submit" value="提交"> </p> </fieldset> </form> </body> </html>