STM32f1频率计

MFC实现简单计算器，可以完成加减乘除混合运算，但没有优先级(MFC realize a simple calculator, to be completed Math )

stm32f103Cbt6 单片机   操作SI4463 无线射频模块数据发送接收 通过SPI接口操作SI4463的数据读写

单片机用C语言编程显示X并个位十位百位，并显示在数码管上

stm32L071 ( LO51 等 LO系列都可用)，只用电源芯片cpu ，电池供电1.4uA STOP模式，RTC 唤醒，STM32L0XX，内存多，flash大，比msp430高，价格合理，低功耗首选(stm32L071 stm32L051 1.4ua, lowpower STOP+RTC+WakeUP+...)

详细完整的图书管理系统 功能全面 用C++ SQL 实现的 (Detailed and complete full-featured library management system using C++ SQL implementation)

PWM算法实现，可作为逆变单元的驱动设计，非常的方便。(PWM algorithm can be used as a drive inverter unit design, very convenient.)

说明：  清华大学邓俊辉教授的数据结构C++，经典之作(Tsing Hua university Data Structure)

C++语言封装了二叉树数据结构，实现了一下函数功能： 1、以递归的方式实现中序遍历 2、以栈的方式实现中序遍历 3、递归方式实现先序遍历 4、递归方式实现后序遍历 5、统计叶子节点的数目 6、获取树的深度函数 7、获取输入节点的父节点函数 8、获取输入节点的左兄弟节点

小伟报名参加中央电视台的智力大冲浪节目，本次挑战赛吸引了众多参赛者，主持人为了表彰大家的勇气，先奖励每个参赛者m元。先不要太高兴！因为这些钱还不一定都是你的！接下来主持人宣布了比赛规则： 首先，比赛时间分为n个时段(n≤500),它又给出了很多小游戏，每个小游戏都必须在规定期限ti前完成(1≤ti≤n)。如果一个游戏没能在规定期限前完成，则要从奖励费m元中扣去一部分钱wi，wi为自然数，不同的游戏扣去的钱是不一样的。当然，每个游戏本身都很简单，保证每个参赛者都能在一个时段内完成，而且都必须从整时段开始。主持人只是想考考每个参赛者如何安排组织自己做游戏的顺序。作为参赛者，小伟很想赢得冠军，当然更想赢取最多的钱！注意:比赛绝对不会让参赛者赔钱！ (Xiaowei enroll CCTV intellectual big surf program, The Challenge has attracted many participants, we commend the courage to host first award each participant m, respectively. Let us not be too happy! Because these are not necessarily paying the money you! Then the host announced the rules of the game: First, the game is divided into n time periods (n ≤ 500), it also gives a lot of games, each game must be completed before the specified period ti (1 ≤ ti ≤ n). If a game could not be completed before the specified period, the deduction from the fee m-ary part of the money in reward wi, wi is a natural number, different game deduct money is not the same. Of course, every game itself is very simple, to ensure that each participant can be completed within a period of time, but must start from the entire period. Moderator just want to quiz each participant how to make their own arrangements for the organization of the game in order. As a participant, Xiaowei wanted to win, of course, want t)

3.5寸 TFT 屏模组驱动程序，驱动芯片为：ILI9486；供参考。(3.5 inch TFT screen module driver, driver chip: ILI9486; for reference.)