我读到“ go角”和“pple”代码指南,两者都是没有自食其力的切身变量。 在方法实施过程中使用(优等和定型)的电话,即使他们宣布了这种类型的财产变数。 为什么?
我认为,使用自食。 要求确定和在班级实施方法中获取变量,使管理人员能够保留。
是否有在课堂内使用洗衣机和固定装置的警钟?
它取决于。 你们应始终使用接触器。
However for init and dealloc methods, you should instead use the direct ivars to release and set variables. That s because the setters can have side effects that are not good to trigger during class initialization or deallocation.
In practice using an accessor as part of init probably will not cause an issue. But I have seen a number of real world crashes where a custom setter was not expecting nil and so use of the accessor in dealloc crashed the app. Even if it didn t crash it could be doing a lot of pointless work since the class was about to die.
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