python3三级菜单的访问,并按q退出

#/usr/bin/env python
#yehui
'''
作业三：多级菜单

    三级菜单
    可依次选择进入各子菜单
    所需新知识点：列表、字典
'''
import readline
class MultiLevelMenu:
    def __init__(self):
        self.counts = 0
        self.multi_level_menu = {
            "这是第三级菜单!hello": {
                "这是第二级菜单!hi": "这是第一级菜单"
            }
        }
        for self.k3,self.v in self.multi_level_menu.items():
            self.menu3 = self.k3
            for self.k2,self.v1 in self.v.items():
                self.menu2 = self.k2
                self.menu1 = self.v1

    def choice_menu(self):
        print("1.%5s" % self.menu1)
        print("2.%5s" % self.menu2)
        print("3.%5s" % self.menu3)

        while self.counts <= 10:
            self.counts += 1
            self.choic = input("请输入你想进入的菜单序列号,输入q退出: ")
            if self.choic == "1":
                print("欢迎进入一级菜单: %s" % self.menu1)
            elif self.choic == "2":
                print("欢迎进入二级菜单: %s" % self.menu2)
            elif self.choic == "3":
                print("欢迎进入三级菜单: %s" % self.menu3)
            elif self.choic == "q":
                exit("bye!")

if __name__ == '__main__':
    m = MultiLevelMenu()
    m.choice_menu()