text: # _*_ encoding:utf-8 _*_
  __author__ = 'sunzhaohui'
  __date__ = '2019-07-01 16:57'
  
  
  def help():
      help_info = '''
              帮助信息:
              有效字段依次顺序: 'username', 'age', 'tel', 'email'
              增加:  add monkey 12 13200000001 monkey@51reboot.com
              删除: 
                 - delete monkey 
                 - delete 1 
              修改: 
                 - update monkey set age = 18
                 - update monkey set tel = 13200000002
                 - update monkey set email = xxx@51reboot.com
              列出: list
              查找: find monkey (用户名模糊查询)
              分页： 
                  - display page 2 pagesize 5
                  - display page 2
              导出: export
              退出: exit
              '''
      return help_info