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KVO移除观察者 #6

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@yangguanghei

1.iOS9之后不移除观察者程序也不会崩溃了
2.不移除不是因为内存泄漏吧? KVO不会对观察者进行强引用 之所以移除是因为会有野指针的问题,可能引起程序崩溃。

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