ionic中列表项增加和删除的实现方法

<div class="chanpinxiangqing">
 <div class="item item-divider">产品明细</div>
 <div class="chanpinxiangqing" ng-repeat="master in masters">
  <div class="item item-divider">
   <div class="" ng-click="selectorOne($index)" >
    <div class="chioceHook sPround">
     <div class="ion-checkmark-round ng-hide" ng-show="master.checked" ></div>
    </div>
    <span >产品</span>
   </div>
   <div ng-click="upOrdown($index);" ng-class="{true:'up',false:'upDown'}[master.updown]"></div>
  </div>
  <ul class="rzInfo" ng-show="master.up">
   <li class="row">
    <span class="col-xs-5"><!--产品类型-->{{master.chanpinType}}</span>
    <select class="" ng-model="myselectType" mobiscroll-select="settings" mobiscroll-instance="demo">
     <option value="0">请选择</option>
     <option value="1">中药</option>
     <option value="2">西药</option>
    </select>
   </li>
   <li class="row">
    <span class="col-xs-5"><!--产品名称-->{{master.chanpinName}}</span>
    <select class="" ng-model="myselectName" placeholder="请选择" mobiscroll-select="settings" mobiscroll-instance="demo">
     <option value="0">请选择</option>
     <option value="1">注射剂</option>
     <option value="2">麻醉剂</option>
    </select>
   </li>
   <li class="row">
    <span class="col-xs-5"><!--规格-->{{master.guige}}</span>
    <select class="" ng-model="myselectGuige" placeholder="请选择" mobiscroll-select="settings" mobiscroll-instance="demo">
     <option value="0">请选择</option>
     <option value="1">10ml</option>
     <option value="2">20ml</option>
    </select>
   </li>
   <li class="row">
    <span class="col-xs-5"><!--单位-->{{master.danwei}}</span>
    <input type="text" name="" class="col-xs-8" value="" />
   </li>
   <li class="row">
    <span class="col-xs-5"><!--数量-->{{master.num}}</span>
    <!--<b class="" contenteditable="true" ng-model="dataclean" ></b>-->
    <input type="text" name="" class="col-xs-8" value="" />
   </li>
   <li class="row">
    <span class="col-xs-5"><!--单价（元）-->{{master.price}}</span>
    <input type="text" name="" class="col-xs-8" value="" />
   </li>
   <li class="row">
    <span class="col-xs-5"><!--总价-->{{master.total}}</span>
    <input type="text" name="" readonly class="col-xs-8" value="" />
   </li>
  </ul>
 </div>
</div>
<div class="" ><span>合计发货总额：</span></div>
<div class="">
 <div class="btnadd" ng-click="add()">增加</div>
 <div class="btndel" ng-click="delete()">删除</div>
</div>

//控制器及服务等
.controller('fhShenQingAddCtrl', function($scope, CONFIG, $ionicSlideBoxDelegate, $rootScope, $http, $ionicPopup, faHuoService, $timeout, $window, loading, tool) {
//产品下的类型名称及规格的选择弹窗设置
 $scope.settings = {
  theme: 'mobiscroll',
  lang: 'zh',
  display: 'center',
  cancelText: '取消',
  setText: '确定',
  onBeforeClose: function(event, inst) {
   if(event.button == "set") {
    $scope.startdate = event.valueText;//获取选择日期
    console.log($scope.startdate)
   } else if(event.button == "cancel") {
    console.log("取消")
   }
  }
 };
 //增加
 $scope.masters= [{'chanpinType':'产品类型',
     'chanpinName':'产品名称',
     'guige':'规格',
     'danwei':'单位',
     'num':'数量',
     'price':'单价（元）',
     'total':'总价',
     'checked':'true',//选中切换
     'updown':'true',//下拉内容显示切换
     'up':'true'//箭头上下切换
     }];
 $scope.add = function() {
  $scope.cope={'chanpinType':'产品类型',
     'chanpinName':'产品名称',
     'guige':'规格',
     'danwei':'单位',
     'num':'数量',
     'price':'单价（元）',
     'total':'总价',
     'checked':'true', //选中切换
     'updown':'true', //下拉内容显示切换
     'up':'true' //箭头上下切换
     };
  var bb = angular.copy($scope.cope);
  $scope.masters.push(bb) 
  console.log($scope.masters)
 };
 //删除
 $scope.delete = function() {
  var arr = [];
  angular.forEach($scope.masters,function(item,index){
   if(!item.checked){
    arr.push(item);     
   }
  })
  //console.log(arr)
  $scope.masters = arr;
 };
 //切换箭头的上下指向这里写代码片
 $scope.upOrdown = function(rowNumber){
  console.log($scope.masters[rowNumber].updown)
  $scope.masters[rowNumber].up = !$scope.masters[rowNumber].up;
  $scope.masters[rowNumber].updown=!$scope.masters[rowNumber].updown;
 };
 //某一行选中
 $scope.selectorOne = function(rowNumber) {
  console.log($scope.masters[rowNumber].checked)
  $scope.masters[rowNumber].checked = !$scope.masters[rowNumber].checked;
 };
})