管理系统

python

import json

import os

from datetime import datetime

class Customer:

def __init__(self, name, phone, email="", company="", notes=""):

self.id = datetime.now.strftime("%Y%m%d%H%M%S") 生成唯一ID

self.name = name

self.phone = phone

self.email = email

pany = company

self.notes = notes

self.created_at = datetime.now.isoformat

self.updated_at = self.created_at

def to_dict(self):

return self.__dict__

class CustomerManager:

def __init__(self, file_path="customers.json"):

self.file_path = file_path

self.customers = self._load_data

def _load_data(self):

if os.path.exists(self.file_path):

with open(self.file_path, 'r') as f:

data = json.load(f)

return [Customer(c) for c in data]

return []

def _save_data(self):

data = [c.to_dict for c in self.customers]

with open(self.file_path, 'w') as f:

json.dump(data, f, indent=2)

def add_customer(self):

print("

添加新客户")

name = input("姓名: ").strip

phone = input("电话: ").strip

email = input("邮箱(可选): ").strip

company = input("公司(可选): ").strip

notes = input("备注(可选): ").strip

if not name or not phone:

print("错误：姓名和电话为必填项")

return

new_customer = Customer(name, phone, email, company, notes)

self.customers.append(new_customer)

self._save_data

print("客户添加成功！")

def list_customers(self):

print("

客户列表")

print("-" 80)

print(f"{'ID':<15} {'姓名':<10} {'电话':<15} {'邮箱':<20} {'公司':<15}")

print("-" 80)

for customer in self.customers:

print(f"{customer.id:<15} {customer.name:<10} {customer.phone:<15}

f"{customer.email:<20} {pany:<15}")

print(f"

共 {len(self.customers)} 位客户")

def search_customers(self):

keyword = input("

请输入搜索关键字: ").lower.strip

results = []

for customer in self.customers:

if (keyword in customer.name.lower or

keyword in customer.phone or

keyword in customer.email.lower):

results.append(customer)

if results:

print(f"

找到 {len(results)} 条结果:")

for i, c in enumerate(results, 1):

print(f"{i}. {c.name} ({c.phone})

{pany}")

else:

print("未找到匹配的客户")

def edit_customer(self):

customer_id = input("

请输入要修改的客户ID: ").strip

customer = next((c for c in self.customers if c.id == customer_id), None)

if not customer:

print("未找到该客户")

return

print("

当前信息:")

print(f"1. 姓名: {customer.name}")

print(f"2. 电话: {customer.phone}")

print(f"3. 邮箱: {customer.email}")

print(f"4. 公司: {pany}")

print(f"5. 备注: {customer.notes}")

try:

field = int(input("请选择要修改的字段(1-5): "))

new_value = input("请输入新值: ").strip

if field == 1:

if not new_value:

raise ValueError("姓名不能为空")

customer.name = new_value

elif field == 2:

if not new_value:

raise ValueError("电话不能为空")

customer.phone = new_value

elif field == 3:

customer.email = new_value

elif field == 4:

pany = new_value

elif field == 5:

customer.notes = new_value

else:

print("无效的选项")

return

customer.updated_at = datetime.now.isoformat

self._save_data

print("修改成功！")

except ValueError as e:

print(f"错误: {e}")

def delete_customer(self):

customer_id = input("

请输入要删除的客户ID: ").strip

customer = next((c for c in self.customers if c.id == customer_id), None)

if customer:

confirm = input(f"确认删除 {customer.name} 吗？(y/n): ").lower

if confirm == 'y':

self.customers.remove(customer)

self._save_data

print("客户已删除")

else:

print("未找到该客户")

def main:

manager = CustomerManager

while True:

print("

管理系统")

print("1. 添加客户")

print("2. 显示客户列表")

print("3. 搜索客户")

print("4. 修改")

print("5. 删除客户")

print("0. 退出系统")

choice = input("请选择操作: ").strip

if choice == '1':

manager.add_customer

elif choice == '2':

manager.list_customers

elif choice == '3':

manager.search_customers

elif choice == '4':

manager.edit_customer

elif choice == '5':

manager.delete_customer

elif choice == '0':

print("感谢使用，再见！")

break

else:

print("无效的输入，请重新选择")

if __name__ == "__main__":

main

主要功能特点：

1. 数据持久化：使用JSON文件存储数据

2. 包含：

唯一ID（基于时间戳生成）

姓名

电话

邮箱

公司

备注

创建/更新时间

3. 主要功能：

添加客户

显示客户列表

搜索客户（支持姓名、电话、邮箱、公司等多字段搜索）

修改

删除客户

数据自动保存

4. 输入验证：

必填字段检查

数据类型验证

5. 用户界面：

清晰的命令行菜单

表格化数据显示

操作确认提示

使用方法：

1. 将代码保存为 `customer_system.py`

2. 通过命令行运行：`python customer_system.py`

3. 按照菜单提示进行操作

系统会自动创建 `customers.json` 文件来存储数据。所有操作都会实时保存到文件中，确保数据安全。

可以根据需要扩展以下功能：

增加更多客户字段

实现数据导入/导出

添加用户权限管理

增加统计报表功能

实现多条件组合搜索

添加数据备份功能