ng-model可双向绑定、验证表单、应用状态、提供css类
双向绑定：
<div ng-app= "myApp" ng-controller = "myCtrl">
名字： <input ng-model = "name" />
</div>
<script>
var app = angular.module(‘myApp‘, []);
app.controller(‘myCtrl‘, function($scope){
$scope.name = "allison"
});
</script>
原文：http://www.cnblogs.com/zhyc010/p/7091735.html