这样可以使用validate=”{required:true}”的方式，或者class=”required”，但class=”{required:true,minlength:5}”将不起作用
例如，将上面示例代码改为：
<meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″ />
<script language=”JavaScript” type=”text/JavaScript” src=”jquery-1.6.1.js”></script>
<script language=”JavaScript” type=”text/JavaScript” src=”jquery.validate.min.js”></script>
<script language=”JavaScript” type=”text/JavaScript” src=”jquery.metadata.js”></script>
<script>
$().ready(function() {
$.metadata.setType(“attr”, “validate”);
$(“#signupForm”).validate();
});
</script>
<form id=”signupForm” method=”get” action=””>
<p>
<label for=”firstname”>Firstname</label>
<input id=”firstname” name=”firstname” validate=”{required:true}” />
<p>
<label for=”email”>E-Mail</label>
<input id=”email” name=”email” validate=”{required:true, email:true}” />
</p>
<p>
<label for=”password”>Password</label>
<input id=”password” name=”password” type=”password” validate=”{required:true,minlength:5}” />
</p>
<p>
<label for=”confirm_password”>确认密码</label>
<input id=”confirm_password” name=”confirm_password” type=”password” validate=”{required:true,minlength:5,equalTo:’#password’}” />
</p>
<p>
<input class=”submit” type=”submit” value=”Submit”/>
</p>
</form>
注意：规则部分应用完整形式，即
正确写法：
<input id=”email” name=”email” validate=”{required:true, email:true}” />
错误写法：
<input id=”email” name=”email” validate=”{required email}” />
2、将校验规则写到代码中
<meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″ />
<script language=”JavaScript” type=”text/JavaScript” src=”jquery-1.6.1.js”></script>
