swift 4.2 - 根据字符串 push指定控制器

 /// 指定字符串VC跳转,设置title
    func pushVcByVcNameAndTitle(vcName:String, vcTitleName:String = "", isHideBottomBar:Bool = false){
        if let namespace = Bundle.main.infoDictionary?["CFBundleExecutable"]as? String{
            let clsName = namespace + "." + vcName
            if let cls = NSClassFromString(clsName) as? UIViewController.Type{
                let vc = cls.init()
                vc.title = vcTitleName
                self.navigationController?.pushViewController(vc, animated: true)
            }
        }
    }

    /// 根据字符串获得对应控制器，使用的时候as, 传递参数
    func pushVcByVcNameAndTitle(vcName:String) -> UIViewController?{
        if let namespace = Bundle.main.infoDictionary?["CFBundleExecutable"]as? String{
            let clsName = namespace + "." + vcName
            if let cls = NSClassFromString(clsName) as? UIViewController.Type{
                let vc = cls.init()
                return vc
            }
        }
        return nil
    }

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        //这里 VC需要传递参数进去的
        var pushVc : UIViewController?

       //具体VC 设置 vc的属性
        if let vc1 = pushVcByVcNameAndTitle(vcName: vcNameArr[indexPath.section][indexPath.row]) as? JYWorksShowController{
            vc1.title = titleArr[indexPath.section][indexPath.row]
            //vc1.arr = self.dataArr
            //vc1.title = vcTitleArr[index.row]
            pushVc = vc1
        }

        //这是主页面看需求隐藏tabbar
        self.hidesBottomBarWhenPushed = true
        if let vc = pushVc{
            self.navigationController?.pushViewController(vc, animated: true)
        }else{
            //这里不需要指定控制器。设置VC的属性的。
            pushVcByVcNameAndTitle(vcName: vcNameArr[indexPath.section][indexPath.row], vcTitleName: titleArr[indexPath.section][indexPath.row], isHideBottomBar: true)
        }
        //跳转打开，不然回到首页 没有tabbar
        self.hidesBottomBarWhenPushed = false
    }