分别定义一个教师类teacher和干部类leader

教师类Teacher的定义：

class Teacher:
    def __init__(self, name, age, gender, subject):
        self.name = name
        self.age = age
        self.gender = gender
        self.subject = subject
        
    def teach(self):
        print("I am teaching", self.subject)
        
    def introduce(self):
        print("My name is", self.name, ", I am", self.age, "years old. I am a", self.gender, "and I teach", self.subject)

干部类Leader的定义：

class Leader:
    def __init__(self, name, age, gender, position):
        self.name = name
        self.age = age
        self.gender = gender
        self.position = position
        
    def manage(self):
        print("I am managing", self.position)
        
    def introduce(self):
        print("My name is", self.name, ", I am", self.age, "years old. I am a", self.gender, "and I am in charge of", self.position)

以上是两个简单的类定义，教师类有属性姓名、年龄、性别和科目，方法包括教学和介绍自己；干部类有属性姓名、年龄、性别和职位，方法包括管理和介绍自己。