iOS为一段文字显示不同的颜色

//需求：0次为红色
    NSString *str = @"您有0次拆红包的机会";
    NSMutableAttributedString *attributedStr = [[NSMutableAttributedString alloc]initWithString:str];
    UIColor *color = [AppUtils callColorFromHexRGB:@"5f5f5f"];
    [attributedStr addAttribute:NSForegroundColorAttributeName
                          value:color
                          range:[str rangeOfString:@"您有 次拆红包的机会"]];
    UIColor *color1 = [UIColor redColor];
    [attributedStr addAttribute:NSForegroundColorAttributeName
                          value:color1
                          range:[str rangeOfString:@"0"]];
   

  

//设置label的行间距

 NSMutableParagraphStyle *paregraphStyle = [[NSMutableParagraphStyle alloc]
                                               init];
    [paregraphStyle setLineSpacing:10.0];

    [attributedStr addAttribute:NSParagraphStyleAttributeName value:paregraphStyle range:NSMakeRange(0, str.length)];

    hLabel = [[UILabel alloc]init];

    hLabel.attributedText = attributedStr;