用python统计数据库sqlite中某

        conn.execute('''CREATE TABLE IF NOT EXISTS ADDRESSDB(MacAddress CHAR(50),NewAddress  CHAR(50) );''')
        cursor = conn.cursor()
        c=cursor.execute('''SELECT * FROM ADDRESSDB''')
        r=c.fetchall()
        print(len(r))
        cursor.close()
        print("Table created successfully")
        conn.close()