添加Memo类,至少包含id,name,thing,date四个属性,date可以使用字符串表示,比如1.2
id属性为只读,其他属性可读写
添加MemoAdmin类,作为主体程序,管理Memo类构成的列表,进行Memo的增删改查(相应的方法为add,del,modify, query)处理输入输出
所有Memo记录使用pickle进行读写,数据文件为db.pkl,读写方法为save和load
import pickle
class Memo(object):
def __init__(self, name, date, thing):
self.name = name
self.date = date
self.thing = thing
self._id = 0
@property
def Id(self):
return self._id
@Id.setter
def Id(self, val):
self._id = val
class MemoAdmin(object):
def __init__(self, memo_list):
self.memo_list = memo_list
def add_memo(self):
pass
def del_memo(self):
pass
def modify_memo(self):
pass
def find_memo(self):
pass
@classmethod
def load(cls):
pass
def save(self):
pass
def main():
menu_list = """
1.add
2.del
3.modify
4.find
5.print
6.quit
"""
print(menu_list)
if __name__ == "__main__":
main()
要求可运行的完整代码