var myappWebApp = angular.module('myappWebApp', ['ui.bootstrap']);
//工厂
myappWebApp.factory('wired', function () {
    this.currOp = false;
    return {
        currOp1 : this.currOp
    }
});
   // controller
myappWebApp.controller('wiredCtrl',
    function ($scope, $http, wired) {
        //data
        $scope.currOp = wired.currOp;//why is this undefined?
        $scope.currOpInText = wired.currOpInText();
        $scope.altOpInText = null;
        $scope.boxA = null;
....
我的 scope.currOp 应该如何始终自动具有与wired.currOp 相同的值?