Python 基于列表实现的通讯录管理系统

# 通讯录管理系统
class Contact:
    def __init__(self, name, phone):
        self.name = name
        self.phone = phone
 
class ContactsList:
    def __init__(self):
        self.contact_list = []
 
    def add_contact(self, name, phone):
        self.contact_list.append(Contact(name, phone))
 
    def show_contacts(self):
        for contact in self.contact_list:
            print(f"Name: {contact.name}, Phone: {contact.phone}")
 
    def search_contact(self, name):
        for contact in self.contact_list:
            if contact.name == name:
                print(f"Name: {contact.name}, Phone: {contact.phone}")
                return
        print("Contact not found.")
 
    def delete_contact(self, name):
        self.contact_list = [contact for contact in self.contact_list if contact.name != name]
 
    def update_contact(self, name, new_phone):
        for contact in self.contact_list:
            if contact.name == name:
                contact.phone = new_phone
                print("Contact updated successfully.")
                return
        print("Contact not found.")
 
# 使用示例
contacts = ContactsList()
contacts.add_contact("Alice", "12345")
contacts.add_contact("Bob", "67890")
contacts.show_contacts()
contacts.search_contact("Alice")
contacts.delete_contact("Alice")
contacts.update_contact("Bob", "54321")
contacts.show_contacts()

这段代码定义了Contact和ContactsList两个类，分别用于表示单个联系人和通讯录列表。通过添加、显示、搜索、删除和更新联系人的方法，实现了一个简单的通讯录管理系统。