delimiter //
create procedure p1()
BEGIN
    select * from t1;
END//
delimiter;



--执行存储过程
call.p1()

---创建存储过程
delimite \create proceduer p1()
    in i1 int,
    in i2 int,
    out i3 int ,
    inout r1 int
)
BEGIN
    declare temp1 int;
    declare temp2 int default 0;
    
    set temp1 =1;

    set r1 = i1 + i2 +temp1 +temp2;

    set i3 = i3 +100;
END\delimiter;


----执行存储过程
set @t1 = 4;
set @t2 = 0;
call p1 (1,2,@t1,@t2);
select @t1,@t2;

-- 无参数
call proc_name()

-- 有参数，全in
call proc_name(1,2)

-- 有参数，有in，out，inout
set @t1=0;
set @t2=3;
call proc_name(1,2,@t1,@t2)

import pymysql

conn = pymysql.connect(host=‘127.0.0.1‘, port=3306, user=‘root‘, passwd=‘123‘, db=‘t1‘)
cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)
# 执行存储过程
cursor.callproc(‘p1‘, args=(1, 22, 3, 4))
# 获取执行完存储的参数
cursor.execute("select @_p1_0,@_p1_1,@_p1_2,@_p1_3")
result = cursor.fetchall()


cursor.close()
conn.close()


print(result)