C# this、base的两种用法

一、代表当前类的实例对象

二、调用当前类的构造函数

三、base用法

namespace ConsoleApplication1
{
    class this用法
    {
        person p1 = new person("张三", 20);
       
    }

    class person
    {
        public string Name
        {
            get; set;
        }

        public int Age
        {
            get; set;
        }

        public double Height
        {
            get; set;
        }

        public person(string name, int age, double height)
        {
            //此处的this代表当前类的实例对象
            this.Age = age;
            this.Name = name;
            this.Height = height;
        }


        //此处的this调用person类的三个参数的构造函数，将两个参数的构造函数name和height参数传给三个参数的构造函数
        public person(string name, double height) : this(name, 0, height)
        {

            //this.Name = name;
            //this.Height = height;
        }
    }

    class Student:person
    {
        //不加上base默认继承父类的无参构造函数，base指定继承父类某个构造函数
        public Student(string name, double height, string id):base(name, height)
        {
            this.Id = id;
        }
        public string Id
        {
            get; set;
        }

        public double Value
        {
            get; set;
        }
    }
}