有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？...

桌面GUI时钟

说明：  主要利用Qt和openGL实现了一个简单的太空游戏(The main use of Qt and openGL to achieve a simple space game)

利用但总线DS18B20测温程序，并在LCD显示，取三位有效小数位。整数部分两位。共5位显示。 可在利尔达MSP430F449开发板上直接实现功能。(However, temperature measurement procedure using the bus DS18B20 and LCD display, taking three decimal places effectively. Integral part of the two. A total of five shows. LSD MCU MSP430F449 on the development board can directly implement functionality.)

比较好的OpenGL论文资料，详细介绍了OpenGL三维游戏引擎的制作。是很好的论文范文(Better OpenGL papers information)

cornerHarris函数用法示例，不得少于二十字(Example of Corner Harris Function Usage)

说明：  基于Freertos的ESP8266 AT指令实现MQTT(Implementation of mqtt with esp8266 at instruction based on FreeRTOS)

遗传算法在优化路径中的应用研究，这是MATLAB仿真的源程序。(The genetic algorithm optimization applied research in the path, which is the source of the MATLAB simulation.)

该代码包括了队列的实现，主要包括队列的进出问题， 以及队列的查询，删除等问题。(The code includes queue implementation, mainly including queue in and out of the question, as well as the queue query, delete, etc.)

负责火星的一个低轨道空间站的设计。为简化结构，该空间站由一系列密闭的立方体（airtight cubical modules ACM）组成，这些ACM曾连接在一起。困扰你的一个问题是致命的病菌也许留在火星的上层大气中。因为空间站有时需要在上层大气中飞行，所以急需在ACM的各个接触面进行额外的防护，无论是边对边还是面对面，连接是密闭的，所以没有细菌能够进入。一个ACM与另外一个ACM共享的面不需要防护。如果在每个ACM每个面上都加防护，花费巨大。因此，需要知道ACM额外防护的确切面数目(Responsible for the design of a low-orbit space station on Mars. In order to simplify the structure of the space station by a series of closed cubes (airtight cubical modules ACM) composed of these ACM had together. One problem is bothering you deadly germs might stay in the upper atmosphere of Mars. Because the station is sometimes necessary to fly in the upper atmosphere, so urgently needed in all contact surfaces of the ACM additional protection, either face to face or side-to-side, the connection is closed, so no bacteria can enter. An ACM ACM shared with another surface does not need protection. If you have added protection on each side of each ACM, costly. Therefore, the need to know the exact number of additional surface protection ACM)

讲解 角度传感器的原理，内部结构，引脚功能，以及相关运用(Angle sensor to explain the principles of the internal structure of pin functions, and related use)