想不通，我和老师代码一样的，为什么不能出现提示信息
来源：1-2 如何开始及举例
sunfeisunfei
2015-11-07 15:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<link href="type.css" rel="stylesheet" type="text/css">
<script src="vendor/jquery.validate-1.13.1.js" type="text/javascript"></script>
<script src="vendor/jquery-1.10.0.js" type="text/javascript"></script>
</head>
<body>
<form id="demoForm" method='post'>
<fieldset>
<legend>用户登录</legend>
<p>
<label for="username">用户名</label>
<input type="text" id="username" name="username">
</p>
<p>
<label for="password">密码</label>
<input type="password" id="password" name="password">
</p>
<p>
<input type="submit" value="登录">
</p>
</fieldset>
</form>
<script type="text/javascript">
$(document).ready(function(){
$("#demoForm").validate({
rules: {
username:{
required:true,
minlength:2,
maxlength:10
},
password:{
required:true,
minlength:2,
maxlength:16
}
}
messages: {
username:{
required:"用户名必须填写",
minlength:"用户名最少为2字符",
maxlength:"用户名最大为10字符"
},
password:{
required:"密码必须填写",
minlength:"密码最少为2字符",
maxlength:"密码最大为16字符"
}
}
});
});
</script>
</body>
</html>为什么我不能产生提示信息呢
CSS样式表
body {
font-size: 36px;
line-height: 1.6;
}
p {
margin: 10px 0;
}
label {
display: inline-block;
min-width: 140px;
}
label.error {
margin-left: 10px;
color: red;
}
input, button {
font-size: 36px;
line-height: 35px;
border: 1px solid #999;
min-width: 180px;
}
input.error {
border: 1px solid red;
}
input[type=submit], button {
margin-top: 20px;
font-size: 36px;
padding: 10px 0;
}
/* CSS Document */
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1回答
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- 李晓健
- 2015-11-07 20:28:48
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>无标题文档</title> <style> body { font-size: 36px; line-height: 1.6; } p { margin: 10px 0; } label { display: inline-block; min-width: 140px; } label.error { margin-left: 10px; color: red; } input, button { font-size: 36px; line-height: 35px; border: 1px solid #999; min-width: 180px; } input.error { border: 1px solid red; } input[type=submit], button { margin-top: 20px; font-size: 36px; padding: 10px 0; } </style> <script src="http://cdn.bootcss.com/jquery/1.10.0/jquery.js"></script> <script src="http://cdn.bootcss.com/jquery-validate/1.13.1/jquery.validate.js" type="text/javascript"></script> </head> <body> <form id="demoForm" method='post'> <fieldset> <legend>用户登录</legend> <p> <label for="username">用户名</label> <input type="text" id="username" name="username"> </p> <p> <label for="password">密码</label> <input type="password" id="password" name="password"> </p> <p> <input type="submit" value="登录"> </p> </fieldset> </form> <script type="text/javascript"> $(document).ready(function(){ $("#demoForm").validate({ rules: { username:{ required:true, minlength:2, maxlength:10 }, password:{ required:true, minlength:2, maxlength:16 } }, messages: { username:{ required:"用户名必须填写", minlength:"用户名最少为2字符", maxlength:"用户名最大为10字符" }, password:{ required:"密码必须填写", minlength:"密码最少为2字符", maxlength:"密码最大为16字符" } } }); }); </script> </body> </html>两个问题，1 应该先旨入jquery文件 后引入jquery-validate文件，因为jquery-validate对jquery有依赖。
2.第85（我的代码85行）行少一个，
jQuery插件——Validation Plugin
validation让客户端表单验证变容易，缩短用户等待时间
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