以下python语句sql = """ SELECT date_z, SUM(COUNT() + IFNULL(nn, 0)) FROM ( SELECT id_person, date_z, date_finish FROM luzhi_jilu_all WHERE id_person = %s AND (date_z = date_finish OR date_finish IS NULL) ) AS t1 LEFT JOIN ( SELECT id_person, date_finish, COUNT() AS nn FROM luzhi_jilu_all GROUP BY id_person, date_finish ) AS t2 ON t1.id_person = t2.id_person AND t1.date_z = t2.date_finish GROUP BY date_z ORDER BY date_z DESC """ params = (id_person,) cs.execute(sql, params) jg = cs.fetchall()出现以下错误提示,请检查,并给出修改pymysql.err.ProgrammingError: (1111, 'Invalid use of group function')

这个错误通常是由于 SQL 语句中的 GROUP BY 子句中出现了聚合函数（如 COUNT()）导致的。在这种情况下，你需要将聚合函数移除 GROUP BY 子句，或者将它们放在一个子查询中。你可以尝试以下修改：

sql = """
    SELECT date_z, SUM(cnt)
    FROM (
        SELECT id_person, date_z, 
            COUNT(*) + IFNULL(nn, 0) AS cnt
        FROM (
            SELECT id_person, date_z, date_finish
            FROM luzhi_jilu_all
            WHERE id_person = %s 
                AND (date_z = date_finish OR date_finish IS NULL)
        ) AS t1
        LEFT JOIN (
            SELECT id_person, date_finish, COUNT(*) AS nn
            FROM luzhi_jilu_all
            GROUP BY id_person, date_finish
        ) AS t2 ON t1.id_person = t2.id_person 
            AND t1.date_z = t2.date_finish
        GROUP BY id_person, date_z
    ) AS t3
    GROUP BY date_z
    ORDER BY date_z DESC
"""
params = (id_person,)
cs.execute(sql, params)
jg = cs.fetchall()

在这个修改后的语句中，我们将 COUNT() 和 IFNULL() 函数放在了子查询中，并且在最终的外部查询中使用了 SUM() 函数来计算结果。同时，我们在子查询中也加入了 GROUP BY 子句以避免出现聚合函数在 GROUP BY 子句中的错误使用。