NSString *arrayOfStrings = [NSArray arrayWithObjects:@"http://", @"https://", nil];
NSString *stringToSearchWithin = webpageURLLabel.text;
BOOL found=NO;
for (NSString *s in arrayOfStrings)
for 循环说
集合表达式类型“NSString *”可能无法响应“countByEnumeratingWithState:objects:count:”
我如何解决它?现在它只是一个警告,但我宁愿看不到任何警告