我有以下代码:NSString*name=@"sometextgoesinhere";CFStringRefstring=(__bridgeCFStringRef)self.highlightItem_.comment;CFMutableAttributedStringRefcomment=CFAttributedStringCreateMutable(kCFAllocatorDefault,0);CFAttributedStringReplaceString(comment,CFRangeMake(0,0),string);CGColorRefblue=[UIColorcolorWi