我的目标是将美分显示为蓝色小字体的上标。我正在做以下事情self.superScript=@"8899";NSMutableAttributedString*attString=[[NSMutableAttributedStringalloc]initWithString:self.superScript];UIFont*font=[UIFontsystemFontOfSize:18.0f];UIFont*smallFont=[UIFontsystemFontOfSize:9.0f];[attStringbeginEditing];[attStringaddAttribute:NSFo