<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body>
    <h2>验证实例</h2>
    <form action="" ng-app="myApp" ng-controller="validateCtrl" name="myForm" novalidate>
        <p>用户名：<br>
            <input type="text" name="user" ng-model="user" required>
            <span style="color:red" ng-show="myForm.user.$dirty&&myForm.user.$invalid">
        <span ng-show="myForm.user.$error.required">用户名是必须的</span>
        </span>
        </p>
        <p>邮箱：<br>
            <input type="email" name="email" ng-model="email" required>
            <span style="color: red" ng-show="myForm.user.$dirty && myForm.email.$invalid">
                <span ng-show="myForm.email.&error.required">邮箱是必须的</span>
                <span ng-show="myForm.email.&error.email">非法的邮箱地址</span>

            </span>

        </p>


        <input type="submit" ng-disable="myForm.user.$dirty&&myForm.user.&invalid||myForm.email.$dirty&&myForm.email.&invalid">

    </form>
    <script>
        var app = angular.module('myApp', []);
        app.controller('validateCtrl', function($scope) {
            $scope.user = 'John Doe';
            $scope.email = 'john.doe@gmail.com';
        });
    </script>
</body>
</html>