def fetch(data): print(' 查询功能')
print('⽤户数据是',data)
def add(): pass
def change(): pass
def delete(): pass
if __name__ == '__main__': msg = ''' 1: 查询 2. 添加 3. 修改 4. 删除 5. 退出 '''
msg_dict = { '1': fetch, '2': add, '3': change, '4': delete }
while True: print(msg)
choice = input('请输⼊你的选项:').strip() if not choice: continue if choice == '5': break
data = input('请输⼊你的数据:').strip() msg_dict[choice](data)
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