create procedure p1
@parm1 varchar(20) output
as
set @parm1='AAAAAA'
go
create procedure p2
as
declare @tmp varchar(20)
exec p1 @tmp output
select @tmp
go
--测试
exec p2
@parm1 varchar(20) output
as
set @parm1='AAAAAA'
go
create procedure p2
as
declare @tmp varchar(20)
exec p1 @tmp output
select @tmp
go
--测试
exec p2