- 博客(0)
- 资源 (10)
- 收藏
- 关注
C#技术内幕
全书共14章,每章分为两个部分,全面覆盖了C*语言基本的数据类型、编程概念知识,以及委派、事件、映射、公用语言运行环境库等特色之处,还对 Windows编程时常接触到的数据库、图形图像编程、线程等进行了实例讨论。
2013-01-16
星火30篇文章贯通考研词汇
Unit 1 The Permit………………………………………1
许可证
因生活困苦,我不得不离开家乡去外国打工。我把大部分钱都寄给了妻子和父母。然而不久,政府要求我们必须有工作许可证才能继续打工。后来,我们就遭遇到种种无理待遇……
I think the building must have been used as a farmer's winter store, for I found piles of forgotten dried chestnuts and grain in rotting barrels. I tried the chestnuts but they tasted sour, Paulo said he would bring me food, but that was three days ago.
Yesterday, I heard a car engine getting closer, and climbed up to hide in the beams of the patched roof. But the men just looked in quickly through the worn-out windows and broken doors before they left. I clung to the dusty wooden beam, feeling it would bend under my weight, and tried to make no noise. My arms and legs grew numb, then began to tremble. I longed to move, but I waited until I heard the policemen drive off.
2009-04-02
97-06年计算机历年试题
历年试题:
一. 编译原理
(中科大试题,对计算所考生较有参考意义)
1997年编译原理试题
1.(10分)某操作系统下合法的文件名为
device:name.extension
其中第一部分(device:)和第三部分(.extension)可缺省,若device, name和extension都是字母串,长度不限,但至少为1,画出识别这种文件名的确定有限自动机。
2.(20分)
a. 下面的二义文法描述命题演算公式,为它写一个等价的非二义文法。
S—> S and S | S or S | not S | p | q | (S)
b. 下面文法是否为LL(1)文法?说明理由。
S—> A B | P Q x A—> x y B—> b c
P—> d P | ε Q—> a Q | ε
3.(10分)某些语言允许给出名字表的一个属性表,也允许声明嵌在另一个声明里面,下面文法抽象这个问题。
D —> attrlist namelist | attrlist (D)
namelist —> id, namelist | id
attrlist —> A attrlist | A
A —> decimal | fixed | float | real
2009-04-02
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人