请补全以下代码实现字符串的反转 @implementation NSSt...

Question

请补全以下代码实现字符串的反转

@implementation NSString (StringReverse)
#pragma mark - String reverse
- (NSString *)reversedString
{
    NSMutableString *result = [[NSMutableString alloc] init]
    
    // Wirte your code here
    

}
@end