从动态SQL中返回值_MySQL

declare @TransactorID int
set @TransactorID=0
print(@TransactorID)
--exec sp_executesql N'select @TransactorID=68 ',N'@TransactorID int ',@TransactorID

exec sp_executesql N'select @TransactorID=5 ',N'@TransactorID int out ',@TransactorID out
print(@TransactorID)