iOS 6中NSString新用法

NSString *str = @"mobile developer tips";

 

// Convert string to uppercase

NSString *upperStr = [str uppercaseStringWithLocale:[NSLocale currentLocale]];

NSLog(@"upperStr: %@", upperStr);

 

// Convert string to caps

NSString *capStr = [upperStr capitalizedStringWithLocale:[NSLocale currentLocale]];

NSLog(@"capStr: %@", capStr);

 

// Convert string to lowercase

NSString *lowerStr = [capStr lowercaseStringWithLocale:[NSLocale currentLocale]];

NSLog(@"lowerStr: %@", lowerStr);

 

输出内容如下：