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); } }