<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="https://static.runoob.com/assets/jquery-validation-1.14.0/lib/jquery.js"></script>
<script src="https://static.runoob.com/assets/jquery-validation-1.14.0/dist/jquery.validate.min.js"></script>
<script src="https://static.runoob.com/assets/jquery-validation-1.14.0/dist/localization/messages_zh.js"></script>
<script>
$.validator.setDefaults({
submitHandler: function() {
alert("提交事件!");
}
});
$().ready(function() {
// 提交时验证表单
var validator = $("#form1").validate({
errorPlacement: function(error, element) {
// Append error within linked label
$( element )
.closest( "form" )
.find( "label[for='" + element.attr( "id" ) + "']" )
.append( error);
},
errorElement: "span",
messages: {
user: {
required: " (必需字段)",
minlength: " (不能少于 3 个字母)"
},
password: {
required: " (必需字段)",
minlength: " (字母不能少于 5 个且不能大于 12 个)",
maxlength: " (字母不能少于 5 个且不能大于 12 个)"
}
}
});
$(".cancel").click(function() {
validator.resetForm();
});
});
</script>
<style>
.error{
color:red;
}
</style>
</head>
<body>
<form method="get" class="cmxform" id="form1" action="">
<fieldset>
<legend>登录框</legend>
<p>
<label for="user">用户名</label>
<input id="user" name="user" required minlength="3">
</p>
<p>
<label for="password">密码</label>
<input id="password" type="password" maxlength="12" name="password" required minlength="5">
</p>
<p>
<input class="submit" type="submit" value="Login">
</p>
</fieldset>
</form>
</body>
</html>```
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