c#關於RSA簽名的問題，急。。。，java，c#都進來，求高手翻譯成c#簽名， 在線等， Q 9 1 9 0 7 0 2 7 1

A B C D E

4 5 6 4 8

7 8 9 7 5

π3，2 σA=D(R×S)

C B

6 5

9 8

（2）不是

（3）create view view2 as select distinct PNO,SNO from SPJ

（4）update P set WEIGHT=WEIGHT+100 where PNO='02277'

select PNAME from P where PNO='02277'

（5）select c# from c where c# not in

(select c# from sc where s# in

(select s# from s where sname='wang'))

πc#(σ(c#!=πc#(σ(s#=(πs#(σ(sname='wang')s)))sc))c#)

（6）所有學生都選擇了的課程編號，課程名

select c#,cname from c where c# in (select c# from

(select c#,count(s#) from sc group by c# having

count(s#)=(select count(s#) from s))as a)

（7）insert into student select s#,sname,sex from s where s# not in(select s# from sc where c#<80)