下面的代码段,第一个str的retainCount是多少?第二个和第三个呢?
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NSMutableArray* ary = [[NSMutableArray array] retain];
NSString *str = [NSString stringWithFormat:@"test"];
[strretain];
[aryaddObject:str];
NSLog(@"%@%d",str,[str retainCount]);
[strretain];
[strrelease];
[strrelease];
NSLog(@"%@%d",str,[str retainCount]);
[aryremoveAllObjects];
NSLog(@"%@%d",str,[str retainCount]);
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