Operator运算符重载与Implicit隐式类型转换

Operator运算符重载与Implicit隐式类型转换

class Person

    {

        public int Age { get; set; }

        public string Name { get; set; }

 

        public static int operator -(Person p1, Person p2)//int为想减结果类型，-表示对-进行运算符重载

            //参数为待计算的两个值

        {

                     return p1.Age - p2.Age;

        }

//当重载>后，要求必须重载<

        public static bool operator >(Person p1, Person p2)

        {

            return p1.Age > p2.Age;

        }

 

        public static bool operator <(Person p1, Person p2)

        {

            return p1.Age < p2.Age;

        }

//将string 转换成Person

        public static implicit  operator Person(string s)

        {

            Person p = new Person();

            p.Name = s;

            return p;

        }

//将Person 转换成string

        public static implicit operator string(Person p)

        {

            return p.Name;

        }

 

//当重载==后，要求必须重载!=

 

        public static bool operator ==(Person p1, Person p2)

        {

            return p1.Name == p2.Name && p1.Age == p2.Age;

        }

 

        public static bool operator !=(Person p1, Person p2)

        {

            return !(p1 == p2);

        }

    }