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一:需求分析 1．本程序需掌握树和二叉树的概念及工作原理，运用其原理及概念完成实验.。 2．问题描述： 一个逻辑表达式如果对于其变元的任一种取值都为真，则称为重言式；反之，如果对于其变元的任一种取值都为假，则称为矛盾式；然而，更多的情况下，既非重言式，也非矛盾式。试写一程序，通过真值表判断一个逻辑表达式属于那一类。 3．基本要求： （1）逻辑表达式从终端输入，长度不超过一行。逻辑运算符包括“|”，“&”和“~”, 分别表示或、与和非，运算优先程度递增，但可以有括号改变，即括号内的运算优先。逻辑变元为大写字母。表达式中任何地方都可以含有多个空格符。 （2）若是重言式或矛盾式，可以只“显示True forever”或“False forever”，否则显示“Satisfactible”以及变量名序列，与用户交互。若用户对表达式中变元取一组值，程序就求出并显示逻辑表达式的值。 -1 : a needs analysis. The process required the trees and the binary tree master the concept and principle, to use its principles and the concept of completion of the pilot. . 2. Problem description : If a logical expression for the changes in the yuan"s value for a true, as tautology; Instead, If the changes for the yuan"s value for a fake, then called the contradiction; However, the more the situation, neither tautology. is not a contradiction. Try to write a procedure for the adoption of a truth table judgment logical expression belong into that category. 3. Basic requiremen

JAVA编写的俄罗斯方块 超级老的游戏了-JAVA prepared super old Tetris game

键盘信息报告例子-keyboard examples information report

java 备忘录模式，实现前进，回退，让你有后悔药，包括例子。-java memorandum mode to achieve progress and regress, so that you can have a regret drugs, including examples.

大学那点B事儿.rar 是一部手机诺基亚3100可以存放的程序-University point B thing. Rar is a Nokia 3100 can be stored procedure

给出小波去噪的理论，在MATLAB中实现阈值估算和消噪的函数，并给出例子说明。-Given the theory of wavelet denoising in MATLAB to achieve the threshold estimation and de-noising function, and gives examples to illustrate.

MATLAB程序设计教程》源代码-2660 MATLAB程序设计教程》源代码-2660 MATLAB程序设计教程》源代码-2660-MATLAB Programming Guide,

手机游戏，画面效果还可以，可以作为手机游戏入门参考-phone games, the desired effect can also can serve as a reference mobile gaming portal

CppUnit是著名的用于单元测试的JUint框架的C＋＋端口。测试结果放在用于自动测试的XML中和基于用于监督测试的GUI中。-CppUnit is famous for unit test JUint framework of the C++ ports. Test results for the automatic testing on the XML-based test for monitoring the GUI had.

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