匹配 NSString 和 UILabel 的文本 [重复]

Question

我正在将用户输入的单词与秘密单词进行比较。我的if 语句测试正确的单词是否等于猜测的单词将不起作用。

@property (weak, nonatomic) IBOutlet UILabel *guesslet; //the guessed letter 
@property (weak, nonatomic) IBOutlet UILabel *Word;  //the ongoing guessed word
@property (weak, nonatomic) NSString *wrand;  //the correct word
@property (weak, nonatomic) NSString *letterguess;
- (IBAction)GuessButton;   //the button to guess the word

- (IBAction)GuessButton
{
  letterguess = guesslet.text;
  bool match = NO;
  char charInput = [guesslet.text characterAtIndex: 0];
  for(NSInteger i = 0; i < wrand.length; i++)
  {
    char tempChar = [wrand characterAtIndex: i];
    if (charInput == tempChar)
    {
      match = YES;
      NSRange InputRange = NSMakeRange(i, 1); //location, length
     Word.text = [Word.text stringByReplacingCharactersInRange: 
     InputRange withString: letterguess];
    }
    if(Word.text == randword)
    {
      UIAlertController *alert = [UIAlertController 
      alertControllerWithTitle:@”Winner!!”
      message:@”Great Job! You won!”
      preferredStyle:UIAlertControllerStyleAlert];
      UIAlertAction *okAction = [UIAlertAction
      actionWithTitle:@”Ok”
      style: UIAlertActionStyleDefault
      handler:^(UIAlertAction * action){
      }];
      UIAlertAction *cancelAction = [UIAlertAction
      actionWithTitle:@”Cancel”;
      style: UIAlertActionStyleDefault
      handler:^(UIAlertAction * action){
      }];
      [alert addAction:okAction];
      [alert addAction:cancelAction];
      [self presentViewController:alert animated: YES completion:nil];


    }
}

if(match == NO)

我做错了什么？

Answer 1

使用 == 来比较会做一个指针（或引用）比较，如果你想比较实际的 NSString，你会想要使用类似的东西

if([Word.text isEqualToString:randword]) {

}