我原本要介紹的是多型的概念,不過Python比較特別,可以將object直接強制性轉...如果是在強類型的Java是要做個處理的,不過多型的概念是一樣的,一不小心就性轉了

class human:
    def __init__(self, gender):
        self.gender =gender

    def getGender(self):
        print(self.gender)
class boy(human):
    def __init__(self, gender):
        self.gender = gender

class girl(human):
    def __init__(self, gender):
        self.gender = gender


guy = boy("M")
guy.getGender()
guy = girl("F")
guy.getGender()