通过雪花飞舞这个小例子学习怎么制作控制动画

一:需求分析 1. 问题描述 魔王总是使用自己的一种非常精练而抽象的语言讲话,没人能听懂,但他的语言是可逐步解释成人能听懂的语言,因为他的语言是由以下两种形式的规则由人的语言逐步抽象上去的: ----------------------------------------------------------- (1) a---> (B1)(B2)....(Bm) (2)[(op1)(p2)...(pn)]---->[o(pn)][o(p(n-1))].....[o(p1)o] ----------------------------------------------------------- 在这两种形式中,从左到右均表示解释.试写一个魔王语言的解释系统,把 他的话解释成人能听得懂的话. 2. 基本要求: 用下述两条具体规则和上述规则形式(2)实现.设大写字母表示魔王语言的词汇 小写字母表示人的语言的词汇 希腊字母表示可以用大写字母或小写字母代换的变量.魔王语言可含人的词汇. (1) B --> tAdA (2) A --> sae 3. 测试数据: B(ehnxgz)B 解释成 tsaedsaeezegexenehetsaedsae若将小写字母与汉字建立下表所示的对应关系,则魔王说的话是:"天上一只鹅地上一只鹅鹅追鹅赶鹅下鹅蛋鹅恨鹅天上一只鹅地上一只鹅". | t | d | s | a | e | z | g | x | n | h | | 天 | 地 | 上 | 一只| 鹅 | 追 | 赶 | 下 | 蛋 | 恨 | -one : a needs analysis. Problem description always use their own fiendish a very concise and abstract language speech Nobody can understand, but the language is gradually explained adult can understand the language, because his language is composed of the following two forms of

是一本完整而详细的TCP/IP协议指南。描述了属于每一层的各个协议以及它们如何在不同操作系统中运行。作者用Lawrence Berkeley实验室的tcpdump程序来捕获不同操作系统和TCP/IP实现之间传输的不同分组。对tcpdump输出的研究可以帮助理解不同协议如何工作。 本书适合作为计算机专业学生学习网络的教材和教师参考书。也适用于研究网络的技术人员。 -is a complete and detailed TCP/IP protocol guidelines. Description belongs to every one of the various agreements and how they run different operating systems. Author Lawrence Berkeley Laboratory using the tcpdump procedures to catch different operating system Marketing and TCP/IP transmission between realize the different groups. Tcpdump output of the research can help understand how the different agreements work. The book suitable for students studying computer network of reference materials and teachers. Also applies to the study of the network technical staff.

工业控制中的一种常用控制算法PID运算-industrial control of a common computing PID control algorithm

一个LDPC的仿真程序工具包（由matlab编写而成），内含编码、解码模块等-LDPC simulation program of a kit (prepared by matlab), including coding, decoding module

这是一个为了显示而做的字模软件，可以对文字，图形取模。并可以手绘图形。可以对所有的Windows字体取模，图形文件必须是单色的bmp格式的图片。可以指定设计的宽高以及取模方式，即可以对单一的设计元素取模，也可以对整个设计区域取模。可以保存设计，也可以对设计进行编辑。-This is a show in order to make the matrix and the software, can be text, graphics modulus. And can be hand-drawn graphics. Of all the Windows fonts modulus, graphics files must be a monochrome bmp format images. Can specify the design, as well as the width of high modulus, that is, can a single design element modulus can also be the entire design region modulus. Can be preserved for the design, the design can also be edited.

基于asp的 班级同学录主页源代码- Records the main page source code based on the asp class and grade schoolmate

关于SQL开发的细化，处理开发内部处理系统过程中的BUG。-Refinement on SQL development, deal with the development of the internal processing system in the process of BUG.

数字秒表具有正及时倒计时功能包括一些设计要求和原资料-timer

此文件包含用visual c++编译的流水灯的程序，一定可用digital-This file contains the use of visual c++ compiler of water lamps procedures available to digital must

使用分支限界算法解决最优装载问题，是算法分析与设计的经典。-Using the branch and bound algorithm to solve the optimal loading problem is a classic algorithm analysis and design.