Question

我们已经完成了增量但减少了减去我没有减去仅限于零

<!DOCTYPE html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>

<body>

  <div ng-app="myApp" ng-controller="myCtrl">
    <button ng-click="count = count + 1">+</button>
    <p>
      <input name="vas" ng-model="count" value="{{ count }}"></input>
    </p>
    <div ng-click="count = count - 1 ">-</div>


    {{count*10}}
    </form>
  </div>

  <script>
    var app = angular.module('myApp', []);
    app.controller('myCtrl', function($scope) {
      $scope.count = 0;


    });

  </script>

</body>

</html>

Answer 1

我想你想在计数器为零时禁用-按钮。

<button  ng-click="count = count - 1 " ng-disabled="count == 0">-</button>

Answer 2

这是一个自定义计数器指令。

检查它会对你有所帮助 http://maikeldaloo.com/post/angularjs-counter-directive

如何计算减量ng-click limit zero

2 个答案: