使用多个视图到同一个模型时，通常需要所有的模型数据和用户的选择在所有视图显示一致。由于视图类允许其内部选择模型进行更换，那么可以使用如下方式实现视图之间的-When using more than one model with a view to, usually require all models of data and users choose to display consistent in all views. Since the view class selection model allows it to be replaced inside, you can use the following ways between views