什么废话都不说，上代码！

import json

class ContactBook:
    def __init__(self, filename='contacts.json'):
        self.contacts = {}
        self.filename = filename
        self.load_contacts()

    def add_contact(self, name, phones, emails, tags=None):
        if tags is None:
            tags = []
        if name not in self.contacts:
            self.contacts[name] = {
                'phones': phones if isinstance(phones, list) else [phones],
                'emails': emails if isinstance(emails, list) else [emails],
                'tags': tags
            }
            print(f"Contact added: {name} - Phones: {phones}, Emails: {emails}, Tags: {tags}")
        else:
            print("Contact already exists.")

    def find_contact(self, name):
        if name in self.contacts:
            contact_info = self.contacts[name]
            return (f"{name} - Phones: {', '.join(contact_info['phones'])}, "
                    f"Emails: {', '.join(contact_info['emails'])}, Tags: {', '.join(contact_info['tags'])}")
        else:
            return "Contact not found."

    def update_contact(self, name, new_phones=None, new_emails=None, new_tags=None):
        if name in self.contacts:
            if new_phones:
                self.contacts[name]['phones'] = new_phones if isinstance(new_phones, list) else [new_phones]
            if new_emails:
                self.contacts[name]['emails'] = new_emails if isinstance(new_emails, list) else [new_emails]
            if new_tags is not None:
                self.contacts[name]['tags'] = new_tags
            print(f"Contact updated: {name} - Phones: {', '.join(self.contacts[name]['phones'])}, "
                  f"Emails: {', '.join(self.contacts[name]['emails'])}, Tags: {', '.join(self.contacts[name]['tags'])}")
        else:
            print("Contact not found to update.")

    def remove_contact(self, name):
        if name in self.contacts:
            del self.contacts[name]
            print(f"{name} has been removed.")
        else:
            print("Contact not found to remove.")

    def save_contacts(self):
        with open(self.filename, 'w') as file:
            json.dump(self.contacts, file, ensure_ascii=False, indent=4)
        print("Contacts saved to file.")

    def load_contacts(self):
        try:
            with open(self.filename, 'r') as file:
                self.contacts = json.load(file)
            print("Contacts loaded from file.")
        except FileNotFoundError:
            print("No existing contact file found, starting fresh.")
        except json.JSONDecodeError:
            print("Error decoding the contact file, starting with an empty contact book.")

def main():
    my_contacts = ContactBook()
    while True:
        print("\nContact Book Operations:")
        print("1 - Add Contact")
        print("2 - Find Contact")
        print("3 - Update Contact")
        print("4 - Remove Contact")
        print("5 - Save Contacts to File")
        print("6 - Exit")
        choice = input("Choose an operation (1-6): ")

        if choice == '1':
            name = input("Enter the contact name: ")
            phones = input("Enter the phone numbers separated by commas: ").split(',')
            emails = input("Enter the email addresses separated by commas: ").split(',')
            tags = input("Enter tags separated by commas (optional): ").split(',') if input("Do you want to add tags? (yes/no): ").lower() == 'yes' else []
            my_contacts.add_contact(name, phones, emails, tags)
        elif choice == '2':
            name = input("Enter the contact name to find: ")
            print(my_contacts.find_contact(name))
        elif choice == '3':
            name = input("Enter the contact name to update: ")
            new_phones = input("Optionally, enter the new phone numbers separated by commas (leave blank if no change): ").split(',')
            new_emails = input("Optionally, enter the new email addresses separated by commas (leave blank if no change): ").split(',')
            new_tags = input("Enter new tags separated by commas (leave blank if no change): ").split(',') if input("Do you want to update tags? (yes/no): ").lower() == 'yes' else None
            my_contacts.update_contact(name, new_phones if new_phones[0] else None, new_emails if new_emails[0] else None, new_tags)
        elif choice == '4':
            name = input("Enter the contact name to remove: ")
            print(my_contacts.remove_contact(name))
        elif choice == '5':
            my_contacts.save_contacts()
        elif choice == '6':
            print("Exiting the program.")
            break
        else:
            print("Invalid option, please choose a valid number (1-6).")

if __name__ == "__main__":
    main()