C#基础问题希望得到您的帮助
class Student
  {
  #region 姓名
  private string name;
  /// <summary>
  /// 姓名
  /// </summary>
  public string Name
  {
  get { return name; }
  set { name = value; }
  } 
  #endregion

  #region 学号
  private string xuehao;
  /// <summary>
  /// 学号
  /// </summary>
  public string Xuehao
  {
  get { return xuehao; }
  set { xuehao = value; }
  } 
  #endregion

  #region 年龄
  private int age;
  /// <summary>
  /// 年龄
  /// </summary>
  public int Age
  {
  get { return age; }
  set { age = value; }
  } 
  #endregion

  #region 性别

  private string sex;
  /// <summary>
  /// 性别
  /// </summary>
  public string Sex
  {
  get { return sex; }
  set { sex = value; }
  } 
  #endregion
  public Student(string name, string xuehao, int age)
  {
  this.name = name;
  this.xuehao = xuehao;
  this.age = age;
  }
  public void SayHi()
  {
  Console.WriteLine("我叫" + this.name + "我的学号" + this.xuehao + "我的年龄" + this.age);
  }
  public void SayHi1()
  {
  Console.WriteLine("我叫" + this.name + "我的学号" + this.xuehao + "我的年龄" + this.age+"我是"+this.sex);
  }
  public Student(string name, string xuehao, int age, string sex)
  : this(name, xuehao, age)
  {
  this.sex = sex;
  }
  }
这里是Main函数
Student s1 = new Student("张三", "110", 20);
  Student s2 = new Student("李四", "111", 21,"男");
  s2.SayHi1();
  s1.SayHi();
  Console.Read();
问题：第二个构造函数中：this（string name……）代表什么意思


------解决方案--------------------
在第二个构造中调用另一个构造函数
------解决方案--------------------

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在第二个构造中调用另一个构造函数