Question

这是我的代码：

 NSString *trimfeedback = [FeedbackTxtString stringByReplacingOccurrencesOfString:@"<br><u>Your 
 answer</u>:<ca>#ya#</ca><br><u>Correct answer</u>:<br>" withString:@"<p>"];

要替换的字符串将是静态的，而“FeedbackTxtString”可以包含“正确答案”或“正确答案”的文本。我需要实现OR案例，因为我不知道'FeedbackTxtString'中会有什么。如果FeedbackTxtString包含“正确答案”，则要替换的字符串应为 Your answer:<ca>#ya#</ca> Correct answers: " withString:@"，或者如果它包含“正确答案”，则要替换的字符串应为 Your answer:<ca>#ya#</ca> Correct answer: " withString:@" 我怎么能这样做？

Answer 1

这样做：

  if([FeedbackTxtString rangeOfString:@"Correct answers"].location != NSNotFound)
  {
    NSString *trimfeedback = [FeedbackTxtString stringByReplacingOccurrencesOfString:@"<br><u>Your answer</u>:<ca>#ya#</ca><br><u>Correct answers</u>:<br>" withString:@"<p>"];
  }
  else if([FeedbackTxtString rangeOfString:@"Correct answer"].location != NSNotFound)
  {
    NSString *trimfeedback = [FeedbackTxtString stringByReplacingOccurrencesOfString:@"<br><u>Your answer</u>:<ca>#ya#</ca><br><u>Correct answer</u>:<br>" withString:@"<p>"];
  }

选择两个静态文本之间的选择

1 个答案: