iphone - 如何从数组中分离图像名称

Question

我有一个从数据库中检索的图像数组，我想检索图像数组中图像的名称，我试过这个，它不工作，

  - (NSString *)convertToDisplayName
 {
  NSMutableString *displayName = [[name mutableCopy] autorelease];
  [displayName replaceOccurrencesOfString:@".png" withString:@""
  options:NSLiteralSearch range:NSMakeRange(0, displayName.length)];
  [displayName replaceOccurrencesOfString:@"_" withString:@" "
  options:NSLiteralSearch range:NSMakeRange(0, displayName.length)];
  return displayName;
 }

请帮助我。提前谢谢？

Answer 1

再小一点，

- (NSString *) convertToDisplayName:(NSString *) actual
{
    return [[actual stringByReplacingOccurrencesOfString:@".png" withString:@""] stringByReplacingOccurrencesOfString:@"_" withString:@" "];
}

 NSLog("@Result : %@",[self convertToDisplayName:@"test_file.png"]);

结果：测试文件

Answer 2

试试这个代码行：

- (NSString *)convertToDisplayName
 {
  NSMutableString *displayName = [[name mutableCopy] autorelease];
  [displayName replaceOccurrencesOfString:@".png" withString:@""
  options:0 range:NSMakeRange(0, displayName.length)];
  [displayName replaceOccurrencesOfString:@"_" withString:@" "
  options:0 range:NSMakeRange(0, displayName.length)];
  return displayName;
 }