启用和禁用文本框的代码段
var app = angular.module('DemoApp', []);
app.controller('myController', function($scope) {
$scope.pass = true;
$scope.email = true;
$scope.age = true;
$scope.stat = true;
$scope.submit = true;
var name = $scope.uname;
var pss = $scope.pass;
var email = $scope.email;
var age = $scope.age;
var status = $scope.stat;
if (name.length != 0) {
$scope.pass = false;
} else if (pss.length != 0) {
$scope.email = false;
} else if (email.length != 0) {
$scope.age = false;
} else if (age.length != 0) {
$scope.stat = false;
} else if (status.length != 0) {
$scope.submit = false;
}
})<head>
<script src="/lib/angular.min.js"></script>
<script src="js/app.js"></script>
</head>
<body ng-app="DemoApp" ng-controller="myController">
<fieldset>
<legend>User Login</legend>
<dl>
<dt>Username</dt>
<dt><input type="text" ng-model="uname" ng-change="myController"></dt>
</dl>
<dl>
<dt>Password</dt>
<dt><input type="password" ng-model="pass" ng-change="myController" ></dt>
</dl>
<dl>
<dt>E-mail</dt>
<dt><input type="email" ng-model="email" ng-change="myController"></dt>
</dl>
<dt>Age</dt>
<dt><input type="text" ng-model="age" ng-change="myController"></dt>
<dl>
<dt>Status</dt>
<dt><input type="text" ng-model="stat" ng-change="myController"></dt>
</dl>
<dl>
<dt></dt>
<dt><input type="submit" ng-model="submit" ng-change="myController" value="submit"></dt>
</dl>
</fieldset>
</body>
</html>在var app= angular.module('DemoApp',[]);行中，它说：
未定义角度
因为我已经包括了所有需要的图书馆
此应用程序的目的是禁用所有文本框，并在用户逐个填写表单时动态启用。
试试这个
angular.module('DemoApp', [])
.controller('myController', ['$scope', function($scope) {
$scope.pass = true;
$scope.email = true;
$scope.age = true;
$scope.stat = true;
$scope.submit = true;
var name = $scope.uname;
var pss = $scope.pass;
var email = $scope.email;
var age = $scope.age;
var status = $scope.stat;
if (name.length != 0) {
$scope.pass = false;
} else if (pss.length != 0) {
$scope.email = false;
} else if (email.length != 0) {
$scope.age = false;
} else if (age.length != 0) {
$scope.stat = false;
} else if (status.length != 0) {
$scope.submit = false;
}
}]);