     
     
     func setupUI () {
+        self.view.backgroundColor = UIColor.white
         setupTableView()
         if WBUserAccountModel.shared.isLogin != true {
             setupVisitorView ()

        visitorView?.delegate = self
        view.addSubview(visitorView!)
    }

}

// MARK: - UI相关

    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Do any additional setup after loading the view.
        setupUI()
        NotificationCenter.default.addObserver(self, selector: #selector(whenLoginIsSucess), name: NSNotification.Name(rawValue: loginSuccess), object: nil)
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
