【www.gdgbn.com--php函数】

class Employee
    {
        public Employee(string EmployeeName)
        {
            Name = EmployeeName;
        }
        public string Name;
    }
    class TeamLeader : Employee
    {
        public TeamLeader(string LeaderName, int LeaderLevel)
            : base(LeaderName)
        {
            Level = LeaderLevel;
        }
        public int Level;
    }

本文来源：http://www.gdgbn.com/jiaocheng/14430/