1、实例背景
ionic是基于AngularJS，是一个框架。根据AngularJS双向绑定变量，动态获取值。
2、实现源码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>ionic之简单实例</title>
<link rel="stylesheet" href="../css/ionic.css" />
<script type="text/javascript" src="../js/ionic.bundle.js" ></script>
<script>
var app = angular.module("tagApp",["ionic"]);
app.controller("tagController",function($scope){
$scope.username = "李海";
});
</script>
</head>
<body ng-app="tagApp" ng-controller="tagController">
<ion-header-bar class="bar-positive">
<label class="title">欢迎使用ionic</label>
</ion-header-bar>
<ion-content>
<span>{{username}}</span>
</ion-content>
</body>
</html>
3、实现结果
