用python写一个电话管理系统

好的，我可以为您提供一个简单的电话管理系统的Python代码，让您参考：

class Contact:
    def __init__(self, name, phone_number):
        self.name = name
        self.phone_number = phone_number

class Phonebook:
    def __init__(self):
        self.contacts = []

    def add_contact(self, name, phone_number):
        contact = Contact(name, phone_number)
        self.contacts.append(contact)

    def search_contact(self, name):
        for contact in self.contacts:
            if contact.name == name:
                return contact.phone_number
        return "Contact not found."

    def remove_contact(self, name):
        for contact in self.contacts:
            if contact.name == name:
                self.contacts.remove(contact)
                return "Contact removed."
        return "Contact not found."

phonebook = Phonebook()

while True:
    print("1. Add contact")
    print("2. Search contact")
    print("3. Remove contact")
    print("4. Quit")

    choice = input("Enter your choice: ")

    if choice == "1":
        name = input("Enter the name: ")
        phone_number = input("Enter the phone number: ")
        phonebook.add_contact(name, phone_number)
        print("Contact added.")

    elif choice == "2":
        name = input("Enter the name: ")
        phone_number = phonebook.search_contact(name)
        print(phone_number)

    elif choice == "3":
        name = input("Enter the name: ")
        message = phonebook.remove_contact(name)
        print(message)

    elif choice == "4":
        break

    else:
        print("Invalid choice. Please try again.")

这个电话管理系统使用了Python类和对象的概念，包括联系人（Contact）和电话簿（Phonebook）两个类。您可以通过选择不同的选项来添加联系人，搜索联系人或删除联系人。