iOS label的文字显示不同的颜色

    UILabel * goodtotalLabel = [UILabel new];    goodtotalLabel.textColor = ZDColor_Red;    //原来label文字的颜色    NSMutableAttributedString *hintString =[[NSMutableAttributedString alloc]initWithString:[NSString stringWithFormat:@"总计:¥ %.2f  ",sum]];    //获取要调整颜色的文字位置    NSRange range =[[hintString string]rangeOfString:@"总计:¥"];    [hintString addAttribute:NSForegroundColorAttributeName value:ZDColor_Black range:range];    goodtotalLabel.attributedText = hintString;