关于枚举的 iOS 警告

Question

NSString *arrayOfStrings = [NSArray arrayWithObjects:@"http://", @"https://", nil];
NSString *stringToSearchWithin = webpageURLLabel.text;

BOOL found=NO;
for (NSString *s in arrayOfStrings)

for 循环说

Collection expression type 'NSString *' may not respond to 'countByEnumeratingWithState:objects:count:'

我该如何解决？现在它只是一个警告，但我不想看到任何警告

Answer 1

您将 arrayOfStrings 声明为 NSString。应该是 NSArray