全选 ---- 添加验证

<th><input type="checkbox" ng-model="qq" ng-click="all()"/></th>

<td><input type="checkbox"  ng-model="x.qx"/></td>

//全选
    $scope.all = function(){
     for(var i in $scope.shops){
      $scope.shops[i].qx = $scope.qq;
     }
    }

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<td><button ng-click="add()">添加</button></td>

<td>
     名称：
     <input type="text" ng-model="zname"/>
     <span ng-show="mc">
      名字不为空
     </span>
    </td>

//添加并验证
    $scope.add = function(){
      var s = {};
      var gname = $scope.zname;
      var gprice = parseInt($scope.zprice);
      var gproduct = $scope.zproduct;
     if(gname == "" || gname == null){
//      alert("名字不为空");
      $scope.mc = true;
      return;
     }else{
      $scope.mc = false;
     }
     if(gprice <= 0 || gprice == null || isNaN(gprice) == true){
      alert("价格大于0");
      return;
     }
     if(gproduct == "" || gproduct == null){
      alert("产地不能为空");
      return;
     }
     
     s = {name:gname,price:gprice,product:gproduct};
     $scope.shops.push(s);
    }