如何在Python中进行数据可靠性存储和恢复

def save_to_file(data, file_path):
    try:
        with open(file_path, 'w') as f:
            f.write(str(data))
    except ioError:
        print("Error: 无法写入文件")

def load_from_file(file_path):
    try:
        with open(file_path, 'r') as f:
            data = f.read()
        return eval(data)
    except IOError:
        print("Error: 无法读取文件")

import json

def save_to_json(data, file_path):
    try:
        with open(file_path, 'w') as f:
            json.dump(data, f)
    except IOError:
        print("Error: 无法写入文件")

def load_from_json(file_path):
    try:
        with open(file_path, 'r') as f:
            data = json.load(f)
        return data
    except IOError:
        print("Error: 无法读取文件")

import sqlite3

def save_to_database(data, db_file):
    conn = sqlite3.connect(db_file)
    c = conn.cursor()

    # 创建表
    c.execute('''CREATE TABLE IF NOT EXISTS data
                 (key TEXT PRIMARY KEY NOT NULL,
                 value TEXT NOT NULL)''')

    # 插入数据
    for key, value in data.items():
        c.execute("INSERT OR REPLACE INTO data VALUES (?, ?)", (key, value))

    conn.commit()
    conn.close()

def load_from_database(db_file):
    conn = sqlite3.connect(db_file)
    c = conn.cursor()

    # 查询数据
    c.execute("SELECT * FROM data")
    data = {row[0]: row[1] for row in c.fetchall()}

    conn.close()
    return data

def save_data():
    # 存储数据的代码

def load_data():
    try:
        # 加载数据的代码
    except:
        print("Error: 数据加载失败，尝试从备份文件恢复数据")
        data = load_from_file("backup.txt")
        if data is not None:
            return data
        else:
            print("Error: 无法从备份文件恢复数据")