<html>
<body>
<div ng-app="" ng-controller="personController">
名: <input type="text" ng-model="person.firstName"><br>
姓: <input type="text" ng-model="person.lastName"><br>
<br>
姓名: {{fullName()}}
</div>
<script>
function personController($scope) {
$scope.person = {
firstName: "John",
lastName: "Doe",
};
$scope.fullName = function() {
var x = $scope.person;
return x.firstName + " " + x.lastName;
}
}
</script>
<script src="https://libs.baidu.com/angular.js/1.2.5/angular.min.js"></script>
</body>
</html>