對於數組「stringByDeletingPathExtension」的等效

Question

我想爲NSArray的所有NSString成員運行stringByDeletingPathExtension。我如何在Objective-C中做到這一點？

Answer 1

NSArray *myArray = ... ;

[myArray makeObjectsPerformSelector:@selector(stringByDeletingPathExtension)]; 

EDIT：作爲@Wevah在評論所指出的，這個解決方案沒有解決的問題，因爲stringByDeletingPathExtension返回字符串而不是修改在其上調用的對象。

NSMutableArray *newArray = [[[NSMutableArray alloc] initWithArray:myArray] autorelease]; 
for(int i = 0; i < [newArray count]; i++) { 
    NSString* oneItem = [newArray objectAtIndex:i]; 
    [newArray replaceObjectAtIndex:i withObject:[oneItem stringByDeletingPathExtension]]; 
} 

然後用你的newArray ...