angularjs – Angular.js如何将$scope注入$scope.on()的指令()？

angular.module('monitorApp')
.run(function($rootScope,$interval) {
            $interval(function(){
                $rootScope.$broadcast('ONE_SEC');
            },1000);
});

angular.module('monitorApp')
.directive("countDown",[ 'sseHandler',function (sseHandler) {
    console.log(sseHandler.broadcastStamp.cpuResult);
    return {
        scope: {
            countFrom: "="
        },link: function(scope,$scope){
           scope.countFrom = sseHandler.broadcastStamp.cpuResult;
           $scope.$on('ONE_SEC',function(scope) {
               sseHandler.broadcastStamp.cpuResult--;
           });
        }
    }
}]);

更新：使用范围注入,我收到错误：
错误：[$injector：unpr]未知提供者：$scopeProvider< - $scope< - countDownDirective

angular.module('monitorApp')
.directive("countDown",'$scope',function (sseHandler,$scope) {
    console.log(sseHandler.broadcastStamp.cpuResult);
    return {
        scope: {
            countFrom: "="
        },function(scope,$scope) {
               sseHandler.broadcastStamp.cpuResult--;
           });
        }
    }
}]);