基于8253、8255芯片汇编实现简易电子琴

说明：  简单的遗传学算法，可以作为初学者进行学习，建议随便看看(Simple genetic algorithm)

说明：  基于AT89C51单片机设计制作一个抢答器，具体要求如下： 1、 设计一个智力竞赛抢答器，可同时共8名选手参加比赛，编号为1、2、3、4、5、6、7、8，各用一个按键。 2、 用一个按键作为主持人总开关，用来控制系统的清零和抢答的开始。 3、 抢答器开始后，数码管开始10秒倒计时，若有选手按动抢答按钮，在LED数码管上显示选手的编号，同时灯亮且伴随声音提示；倒计时完成后，选手不能在抢答；有人抢答成功后，要禁止其他选手抢答；最先抢答选手的编号一直保留到主持人将系统清零。(Based on AT89C51 single chip computer, a rush answerer is designed and manufactured. The specific requirements are as follows: 1. Designing an intelligence contest answering machine, which can be attended by 8 competitors at the same time, numbered 1, 2, 3, 4, 5, 6, 7 and 8, each with a button. 2. A key is used as the master switch of the host, which is used to clear the zero of the control system and start the rush response. 3. After the answering machine starts, the digital tube counts down 10 seconds. If a player presses the answering button and displays the player's number on the LED digital tube, the light is on and accompanied by sound prompts. After the countdown is completed, the competitor can't rush to answer. When someone rushes to answer successfully, other competitors are forbidden to rush to answer. The number of the first competitor is kept until the host clears the system.)

说明：  C#4.0中文视频教程第五讲循环语句2程序源码(C#4.0 Chinese Video Course Lecture 5 Loop Statement 2)

说明：  双向dcdc原理图，可实现双向控制 ，基于高频变压器，可实现闭环控制(Schematic diagram of bidirectional DCDC)

液晶字模生成器1.2(无需安装).exe-Matrix liquid crystal Generator 1.2 (without installation). Exe

模拟的不同轨道卫星运行的状况。改后缀RAR为EXE 即可执行。-simulation of different orbit satellites running. RAR changed for EXE suffix can be executed.

对基本数据，如缺失值、数据集合并等使用pandas进行处理(Processing basic data, such as missing values, data sets, and so on using pandas)

说明：  Opengl capture like fraps for linux

会滑动展开的图文菜单代码,需要点击后才展开的那种菜单，同时显示出菜单的文字提示，喜欢一些动画效果的网页设计者，或许对本款菜单比较感兴趣。

Java j2me游戏：摩迦历险记源码，以前J2me盛行时候的Java手机游戏源码，本游戏界面做的挺不错，看效果请在JAva虚拟机环境下进行。