c#构造函数

public class fatherBase
  {
    public string Name{get;set;}
    public int Age{get;set;}
    public int Id{get;set;}
    public fatherBase()
    {}
    public fatherBase(string name,string age,string id){
    this.Name=name;
    this.Age=age;
    this.Id=id;
    }
  }

public class baby:fatherBase
 {
   public string Test{get;set;}
   public baby()
   {}
   public baby(string test,string name,string age,string id):
    base(name,age,id)
    {
    this.Test=test;
    }
  }