sqlite3 内存mem数据库

https://www.devdungeon.com/content/python-sqlite3-tutorial

args.db_connection = pysqlite3.connect(':memory:')

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def _Back_Db(args):
    disk_db = pysqlite3.connect(args.db_name)
    with disk_db:
        #disk_db.backup(args.db_connection)
        (args.db_connection).backup(disk_db)
    disk_db.close()