如何将UITableViewCell中的textField值获取到textFieldDelegate方法shouldChangeCharactersIn中？

@property (nonatomic, strong) UITextField *textField;

self.textField.delegate = self;
[self.textField addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];

- (void)textFieldDidChange:(UITextField *)textField {
    self.textFieldText = textField.text;
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    NSString *updatedText = [textField.text stringByReplacingCharactersInRange:range withString:string];
    NSLog(@"Updated text: %@", updatedText);
    
    // 可以在这里使用updatedText进行进一步处理
    
    return YES;
}