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新建压缩文件
(1)设计一个“简易计算器”,主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。
(2)用链式存储存储信息,求值时可以采用递归的思想,对表达式进行后序遍历。
(3)将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)
- 2019-06-20 13:12:41下载
- 积分:1
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framebuff
一个简单的linux下framebuffer编程(a simple linux framebuffer programing demo)
- 2005-02-18 09:23:27下载
- 积分:1
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dianshi
此资料给出了一套电子设计工程师的试题,很具指导性、学习性和操作性,大家不妨下载来看看吧。(This information is given a set of electronic design engineers, test questions, it is instructive to learn, and operational, you may wish to download and see it.)
- 2010-10-21 13:13:12下载
- 积分:1
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s
说明: 单片机控制两个步进电机实现小车的走直线和转弯,使小车能画任意给定长,宽的矩形(Single-chip stepper motor control two realize the car walk straight and turn, so that cars can be painted any given length, width of the rectangular)
- 2008-05-13 17:55:00下载
- 积分:1
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EC20 R2.1---4G模块
4G模块EC20开发资料,硬件设计手册,AT指令,原理图和PCB图封装,完整开发资料。(Development Data of 4G Module EC20 and Hardware Design Manual)
- 2018-12-31 11:25:15下载
- 积分:1
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netba
基于matlab编写的BA无标度网络源代码,具有很好的指导意义(BA_net based on matlab)
- 2012-08-25 16:16:24下载
- 积分:1
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hiredis-vip-master
C/C++语言redis开发包,支持cluster,redis3.x可用(redis cluster lib for c/c++ , for redis version 3.x)
- 2019-06-24 16:20:39下载
- 积分:1
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lin_2.1
说明: LIN 2.1总线通信协议标准,比原来的2.0标准有很大不同,研究LIN必备。(LIN 2.1 bus communication protocol standards, than the original 2.0 standard is quite different, research LIN essential.)
- 2020-11-30 21:59:27下载
- 积分:1
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Vigenere
实现维吉尼亚密码,用键盘接收明文和密钥,屏幕打印密文和解密后的明文。
可以实现:大小写敏感,明文小写则密文大写,明文大写则密文小写输出,注意输入的健壮性控制,明文字符超出字符集后保留原文(Virginia to achieve the password, use the keyboard to receive the plaintext and the key, the screen printing ciphertext and the decrypted plaintext. Can be achieved: case sensitive, then the ciphertext plaintext lowercase uppercase, lowercase plaintext ciphertext output is capital, pay attention to the robustness of the control input, plaintext characters out retain the original character set)
- 2011-11-20 19:45:59下载
- 积分:1
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92026545
VC界面风格的实现,这套代码实现了VC的整体框架,其界面功能风格都基本一致,你可在此基础上开发出自己需要的界面,()
- 2018-04-27 06:51:58下载
- 积分:1