改变字符形状和颜色NSMutableAttributedString

   

    NSMutableAttributedString *str = [[NSMutableAttributedString alloc]initWithString:@"我还是一样帅"];

    //设置文字颜色

    [str addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 1)];

    [str addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(4, 1)];

    //设置字体

    [str addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:NSMakeRange(1, 3)];

    

    UILabel *label = [[UILabel alloc]init];

    label.frame =CGRectMake(100, 200, 200, 50);

    label.attributedText =str;

    

    [self .view addSubview:label];