NSRange range = NSMakeRange(6, _balanceStr.length+1);

    NSString *str = [NSString stringWithFormat:@"你的钱总数是￥%@元。", _balanceStr];    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:str];    [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:range];        label.attributedText = attributedString;