1. It is obvious that the buttonWasPressed method violates the open-closed principle. Every time the state of light is added or modified, the code in the buttonWasPressed method needs to be changed, which makes buttonWasPressed a very unstable method.
铿锵有力的中年妇女声音紧随其后:蒙神医,我儿身板子有多硬,你是从小见识过的,巴掌大的石头砸过来,连个皮外伤都不曾有过。
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