你现在能记得上一个问题了吗?

当然，上一个问题是优化以下代码：

sql = "select id from zhize_xiangmu_to_unit where id_zhize_xiangmu='{}'".format(idxm)
co.to_sql(sql)
jg = cs.fetchall()
for j in jg:
    sql = "delete from luzhi_jilu_xijie where id_xiangmu_unit='{}'".format(j)
    x = co.to_sql(sql)
    sql = "delete from luzhi_jilu_all where id_zhize_xiangmu='{}'".format(j)
    x = co.to_sql(sql)
conn.commit()