用AngularJS实现数据绑定实在太方便了(DOM 操作全依赖AngularJS)：
<!DOCTYPE html>
<html ng-app xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Simple app</title>
<script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
</head>
<body>
<div ng-controller="MyController">
<h1>hello {{ clock }}!</h1>
</div>
<script type="text/javascript">
function MyController($scope, $timeout) {
var updateClock = function () {
$scope.clock = new Date();
$timeout(function () {
updateClock();
}, 1000);
};
updateClock();
};
</script>
</body>
</html>
原文：http://www.cnblogs.com/ByronWu12345/p/4783067.html