C# 继承的实现

//创建一个Person的父类

public class Person
{

private string _name;
public string Name
{

get { return _name; }
set { _name = value; }

}

private int _age;

public int Age
{

get { return _age; }
set { _age = value; }

}

private string _gender;
public string Gender
{

get { return _gender; }
set { _gender = value; }

}

public Person(string name, int age, string gender)
{

this.Name = name;
this.Age = age;
this.Gender = gender;

}

}

//创建一个Student的子类

public class Student : Person
{

private int _number;

public int Number
{

get { return _number; }
set { _number = value; }

}

public Student(string name,int age,string gender, int number):base(name,age,gender)
{

//因为父类是一个以后参数的，所以子类后面要加base
//通过上面的构造函数给子类的构造函数赋值，就可以调用父类的方法

this.Number = number;

}

public void ShowStudent()
{

Console.WriteLine("{0},{1},{2},{3}", Name, Gender, Age, Number);

}

}

//创建一个Teacher的子类

public class Teacher : Person
{
public Teacher(string name, int age, string gender) : base(name, age, gender)

public void ShowTeacher()
{

Console.Write("{0},{1},{2}", Name, Age, Gender);

}

public void Teach()
{

Console.WriteLine("我再教C#");

}

}

//创建类的实例对象

static void Main(string[] args)
{

//子类对付类的扩展，也可以添加新的成员，但是不能移除已有的继承成员
//继承是可以传递的，c继承B，B继承A，C不但继承B也继承A
//继承了属性和方法，私有子段没有被继承
//子类如果定义了与父类成员名相同的成员，那么就可以覆盖掉父类的成员，并不是删除只是无法访问父类成员
//单根性 传递性

Student s1 = new Student("吴彦祖", 18, "男", 666);
s1.ShowStudent();

Teacher t1 = new Teacher("帅哥", 22, "男");
t1.ShowTeacher();
t1.Teach();

}