Like the timeline approach, this one shows multiple states of the same location. The difference is that the before-and-after method shows only two states.
时间轴的方法显示了同一地区的多种状态，而过去和未来的方法与其区别在于只显示同一地区的两种状态。
After generalization, the recipients could edit and process the class, field, and method names in the same way as any other API names.
泛化之后，接收方可以象编辑和处理任何其它API名称一样编辑和处理类、字段和方法名称。
The clean method takes a string or an array as input and returns the same string or array after it has been recursively "cleaned."
clean方法以一个字符串或数组作为输入，并在递归地“清理”后返回同一个字符串或数组。
应用推荐