python的类

记录：备忘录。
1.类

class GirlDormitory:
    def __init__(self,d_name,d_addr,d_area,d_info):
        self.name = d_name
        self.addr = d_addr
        self.area = d_area
        self.info = d_info
        self.members = []

    def __str__(self):
        msg = "宿舍名称：%s，地址：%s，面积：%d，信念：%s。"%(self.name,self.addr,self.area,self.info)
        msg2 =""
        if not (self.members == None):
            for mem in self.members:
                msg2 =msg2+str(mem)
        return msg + "宿舍成员包括：" + msg2

    def add_member(self,member):
        self.members.append(member)

class Girl:
    def __init__(self,g_name,g_native_place,g_age,g_bra_cup):
        self.name = g_name
        self.native_place = g_native_place
        self.age = g_age
        self.bra_cup = g_bra_cup

    def __str__(self):
        return "女孩%s，家住%s，年龄%d，%s罩杯。"%(self.name,self.native_place,self.age,self.bra_cup)

    def get_name(self):
        return self.name

    def get_native_place(self):
        return self.native_place

    def get_age(self):
        return self.age

    def get_bra_cup(self):
        return self.bra_cup

def main():
    girl1 = Girl("红玲","泉州",29,"B")
    print("入住一个成员:"+str(girl1))
    girl2 = Girl("七里香", "厦门", 30, "C")
    print("入住一个成员:" + str(girl2))
    gd = GirlDormitory("理想园","杭州",90,"做高傲的女孩")
    gd.add_member(girl1)
    gd.add_member(girl2)
    print(gd)

if __name__ == "__main__":
    main()

2.单例类

class Girl(object):
    __instance = None
    def __new__(cls):
        if cls.__instance == None:
            cls.__instance = object.__new__(cls)
            return cls.__instance
        else:
            return cls.__instance

def main():
    girl1 = Girl()
    #查看对象id
    print("girl1的ID:",id(girl1))
    girl2 = Girl()
    # 查看对象id
    print("girl2的ID:", id(girl2))

if __name__ == "__main__":
    main()

3.类

class Girl(object):
    def __init__(self):
        print("-----Girl的__init__方法执行-----")

    def __del__(self):
        print("-----Girl的__del__方法执行-----")

    def __str__(self):
        print("-----Girl的__str__方法执行-----")
        return "Girl很漂亮."

    def __new__(cls):
        print("-----Girl的__new__方法执行-----")
        return object.__new__(cls)

def main():
    girl = Girl()
    print(girl)

if __name__ == "__main__":
    main()

4.类-方法

class Girl(object):

    #普通方法
    def getCup(self):
        print("那个女孩是B罩杯")
        return "B"

    #类方法
    @classmethod
    def getName(cls):
        print("名称：红玲")
        return "红玲"

    #静态发方法
    @staticmethod
    def getInfo():
        print("信息：那个女孩")
        return "那个女孩"

    #私有方法
    def __getNativePlace(self):
        return "厦门"

    #公有方法
    def getNativePlace(self):
        info = self.__getNativePlace()
        print("获取籍贯信息：",(info))
        return info

def main():
    Girl.getName()
    Girl.getInfo()
    girl = Girl()
    girl.getCup()
    girl.getNativePlace()

if __name__ == "__main__":
    main()

以上，感谢。