使用NSArray的擴展方法使數組中對象執行相同的函數

原創 hfdwdjl 2020-02-23 16:57
  1. - (void)makeObjectsPerformSelector:(SEL)aSelector;
  2. - (void)makeObjectsPerformSelector:(SEL)aSelector withObject:(id)argument;

這兩個方法代替for in，讓數組中的各個對象依次執行相同的函數，可以在一定程度上減少代碼量。

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