郁闷!ionic中获取ng-model绑定的值为undefined如何解决

<div ng-app="myApp" ng-controller="myCtrl">
 名字: <input ng-model="name">
 {{name}}
 <button ng-click="show()">shoName</button>
</div> 

<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
 $scope.show=function(){
  console.log($scope.name);//可以正确的拿到页面上输入的值
  console.log(allPrpos($scope));
 };
 /获取某个对象的属性/
 function allPrpos(obj) { 
  // 用来保存所有的属性名称和值
  var props = "";
  // 开始遍历
  for(var p in obj){ 
   if(typeof(obj[p])=="function"){ // 方法
   //console.log(obj[p]);
   }else{ 
   // p 为属性名称，obj[p]为对应属性的值
   props += p + "=" + obj[p] + "; ";
   } 
  } 
  // 显示所有的属性
  console.log(props);
 }
});
</script>

<ion-view view-title="Chats">
 <ion-content>
  <div>
   名字: <input ng-model="name">
   {{name}}
   <button ng-click="show()">shoName</button>
  </div> 
 </ion-content>
</ion-view>

angular.module('starter.controllers', [])
.controller('ChatsCtrl', function($scope) {
 $scope.show=function(){
  console.log($scope.name);//控制台打印undefined
  console.log(allPrpos($scope));
 };
});

<ion-view view-title="Chats">
 <ion-content ng-controller="MyChatCtrl">
  <div>
   名字: <input ng-model="name">
   {{name}}
   <button ng-click="show()">shoName</button>
  </div> 
 </ion-content>
</ion-view>

angular.module('starter.controllers', [])
.controller('MyChatCtrl', function($scope) {
 $scope.show=function(){//点击button
  console.log($scope.name);//控制台可以正常打印每次input输入框里面的值
  console.log(allPrpos($scope));
 };
});

<ion-view view-title="Chats">
 <ion-content ng-controller="MyChatCtrl">
  <div>
   名字: <input ng-model="name.text">
   {{name}}
   <button ng-click="show()">shoName</button>
  </div> 
 </ion-content>
</ion-view>

<ion-view view-title="Chats">
 <ion-content ng-controller="MyChatCtrl">
  <div>
   名字: <input ng-model="$parent.name">
   {{name}}
   <button ng-click="show()">shoName</button>
  </div> 
 </ion-content>
</ion-view>