问题 sql_add = 'insert into images(id, gray1, contrast1, gray2, contrast2, level) values(%s, %s, %s, %s, %s, %s)' # 执行语句 #execute(self, query, args) cur.execute(sql_add, (str_id, str_gray1, str_contrast1, str_gray2, str_contrast2, str_level)) 原因 官方文档有这样一句话: You shouldn’t assembl