# -*- coding: UTF-8 -*-
class Teacher:
    dic = {'查看学生信息':'show_student','查看讲师信息':'show_teacher'}
    def show_student(self):
        print("-------show_student")
    def show_teacher(self):
        print("-----------show_teacher")
    @classmethod
    def func(cls):
        print("*------1111111111")
nezha = Teacher()
for k in Teacher.dic:
     print(k)
key = input("请输入需求：").strip()
# cmd_str = cmd.split()[0]
# if hasattr( self, "cmd_%s" % cmd_str):
try:
    if hasattr(nezha,Teacher.dic[key]):#当没有的时候/没成功/待咨询
        func = getattr(nezha, Teacher.dic[key])
        func()
except KeyError as e:
    print("输入错误",e)