一、Python系列——函数的应用之名片管理系统

card_list = [] def main_desk():
print('*'*50)
print('欢迎使用【名片管理系统】V1.0')
print('1.新建名片')
print('2.显示全部')
print('3.查询名片')
print('0.退出系统')
print('*'*50) def new_card():
print('新建名片')
print('='*50)
name_str = input('姓名：')
age_str = input('年龄：')
phone_str = input('电话：')
card_dict = {'name': name_str, 'age': age_str, 'phone': phone_str}
card_list.append(card_dict)
print(card_dict)
print(f'添加{name_str}名片成功') def show_all():
print('显示全部名片')
print('=' * 50)
if len(card_list) == 0:
print('名片为空，请先新建名片')
return
print('姓名\t\t年龄\t\t电话')
for card_dict in card_list:
print(f'{card_dict["name"]}\t\t{card_dict["age"]}\t\t{card_dict["phone"]}') def search_card():
print('查询名片')
find_name = input('请输入查找的姓名：')
for card_dict in card_list:
if card_dict['name'] == find_name:
print('='*50)
print('姓名\t\t年龄\t\t电话')
print(f'{card_dict["name"]}\t\t{card_dict["age"]}\t\t{card_dict["phone"]}')
deal_card(card_dict)
break
else:
print('名片不存在，请重新输入') def deal_card(find_dict):
action = input('请输入操作：【1】修改【2】删除【0】返回菜单:')
if action == '':
find_dict['name'] = work(find_dict['name'], '姓名：')
find_dict['age'] = work(find_dict['age'], '年龄：')
find_dict['phone'] = work(find_dict['phone'], '电话：')
print('修改名片成功')
elif action == '':
card_list.remove(find_dict)
print('删除成功') def work(dict_value, message):
result_str = input(message)
if len(result_str) > 0:
return result_str
else:
return dict_value while True:
main_desk()
action_str = input('请输入您的操作：')
print(f'您的操作是【{action_str}】')
if action_str == '':
new_card()
elif action_str == '':
show_all()
elif action_str == '':
search_card()
pass
elif action_str == '':
print('欢迎您再次使用【名片管理系统】')
break
else:
print('您的输入有误，请重新输入操作')