mysql 表结构是instid、ts、o、h、l、c、vol、confirm、k5、k10、k20、k40 现在需要用存储储存过程批量修改k5、k10、k20、k40其中k5等于前5个c得和除5k10等于前10个c得和除10k20等于前20个c得和除20k40等于前50个c得和除40表名可以动态传入

可以使用存储过程来实现批量修改k5、k10、k20、k40的功能。具体的存储过程代码如下：

DELIMITER //

CREATE PROCEDURE update_k_values(IN table_name VARCHAR(255))
BEGIN
    DECLARE done INT DEFAULT FALSE;
    DECLARE total_rows INT;
    DECLARE current_row INT DEFAULT 0;
    DECLARE sum_c DECIMAL(10, 2);
    
    DECLARE cur CURSOR FOR SELECT c FROM table_name ORDER BY ts ASC;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
    
    SET @query = CONCAT('SELECT COUNT(*) INTO @total_rows FROM ', table_name);
    PREPARE stmt FROM @query;
    EXECUTE stmt;
    DEALLOCATE PREPARE stmt;
    
    OPEN cur;
    
    SET current_row = 0;
    SET sum_c = 0;
    
    UPDATE table_name SET k5 = 0, k10 = 0, k20 = 0, k40 = 0;
    
    read_loop: LOOP
        FETCH cur INTO c;
        
        IF done THEN
            LEAVE read_loop;
        END IF;
        
        SET current_row = current_row + 1;
        SET sum_c = sum_c + c;
        
        IF current_row >= 5 THEN
            IF current_row % 5 = 0 THEN
                UPDATE table_name SET k5 = sum_c / 5 WHERE ts = current_row / 5;
            END IF;
            
            IF current_row >= 10 THEN
                IF current_row % 10 = 0 THEN
                    UPDATE table_name SET k10 = sum_c / 10 WHERE ts = current_row / 10;
                END IF;
                
                IF current_row >= 20 THEN
                    IF current_row % 20 = 0 THEN
                        UPDATE table_name SET k20 = sum_c / 20 WHERE ts = current_row / 20;
                    END IF;
                    
                    IF current_row >= 50 THEN
                        IF current_row % 50 = 0 THEN
                            UPDATE table_name SET k40 = sum_c / 40 WHERE ts = current_row / 40;
                        END IF;
                    END IF;
                END IF;
            END IF;
        END IF;
    END LOOP;
    
    CLOSE cur;
END //

DELIMITER ;

通过调用存储过程update_k_values，传入表名参数table_name，即可批量修改k5、k10、k20、k40的值。例如，调用存储过程的代码如下：

CALL update_k_values('your_table_name');

其中，'your_table_name'为需要修改的表名。