}
})
</script>
默认提示
由上面的例子中看出，validate的默认提示是英文的
messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date ( ISO ).",
number: "Please enter a valid number.",
digits: "Please enter only digits.",
creditcard: "Please enter a valid credit card number.",
equalTo: "Please enter the same value again.",
maxlength: $.validator.format( "Please enter no more than {0} characters." ),
minlength: $.validator.format( "Please enter at least {0} characters." ),
rangelength: $.validator.format( "Please enter a value between {0} and {1} characters long." ),
range: $.validator.format( "Please enter a value between {0} and {1}." ),
max: $.validator.format( "Please enter a value less than or equal to {0}." ),
min: $.validator.format( "Please enter a value greater than or equal to {0}." )
}不过可以将其修改为中文，只要加入以下代码
$.extend($.validator.messages, {
required: "这是必填字段",
remote: "请修正此字段",
email: "请输入有效的电子邮件地址",
url: "请输入有效的网址",
date: "请输入有效的日期",
dateISO: "请输入有效的日期 (YYYY-MM-DD)",
number: "请输入有效的数字",
digits: "只能输入数字",
creditcard: "请输入有效的信用卡号码",
equalTo: "你的输入不相同",
extension: "请输入有效的后缀",
maxlength: $.validator.format("最多可以输入 {0} 个字符"),
minlength: $.validator.format("最少要输入 {0} 个字符"),
rangelength: $.validator.format("请输入长度在 {0} 到 {1} 之间的字符串"),
range: $.validator.format("请输入范围在 {0} 到 {1} 之间的数值"),
max: $.validator.format("请输入不大于 {0} 的数值"),
min: $.validator.format("请输入不小于 {0} 的数值")
});使用方式
上面的例子中，validate控件的使用，都是通过使用validate()方法完成的，由于这种方法将HTML结构和javascript逻辑分离，使得代码更加优化
实际上，还有另一种方法就是通过添加HTML属性的方式或添加class类名的方式来进行验证，类似于HTML5新增的input类控件的功能
由于已经将验证规则添加到HTML元素中，所以调用validate()方法时，参数为空
<form id="demoForm">
<p>
<label for="username">用户名：</label>
<input type="text" id="username" name="username" class="required" minlength="2"/>
</p>
