struct Users
{
    public string UserName;
    public string UserSex;
    public int UserAge;

    /// <summary>
    /// Users结构的构造方法
    /// </summary>
    /// <param name="username"></param>
    /// <param name="usersex"></param>
    /// <param name="userage"></param>
    public Users(string username, string usersex, int userage)
    {
        this.UserName = username;
        this.UserSex = usersex;
        this.UserAge = userage;
    }

    /// <summary>
    /// 得到用户信息
    /// </summary>
    public void GetInfo()
    {
        Console.WriteLine("姓名：{0},性别：{1}，年龄：{2}", UserName, UserSex, UserAge);
    }
}

static void Main()
        {
            Users user;
            user.UserName = "张三丰";
            user.UserSex = "女";
            user.UserAge = 18;
            user.GetInfo();
        }

static void Main()
        {
            Users user = new Users("张三丰","男",29);
            user.GetInfo();
        }