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一个数字梯形，选择k条路线，每条路线从第一层的某个数开始，每次进入下一层到达左下或者右下的数字，直到最后一层为止。每条路线不能经过相同的路径，但是可以经过相同的数字节点。 输出一个整数，表示能得到的最大的k条路径经过的数字之和(A digital ladder, the K route, each route the first layer of a number, each time to enter the next layer to reach the left or right next to the number, until the final layer. Each route can not pass through the same path, but can pass through the same number of nodes. Output an integer representing the sum of the number of the largest K paths that can be obtained)

PN532的上位机软件库，包括应用说明文档(PN532 PC software libraries, including the application documentation)

说明：  30章51单片机入门教程，让你轻松学会单片机，不用老师，自学也能学会(30 Chapter 51 MCU introductory tutorial, allow you to easily learn the microcontroller without the teacher, can learn to self-)

铸造过程中温度场的描述的仿真模拟，可以写到文件中(Casting process described temperature field can be written to a file)

stm32芯片--用GPIO口模拟I2C驱动MPU6050陀螺仪(Stm32 chip- using GPIO port simulation I2C driver MPU6050 gyroscope)

单片机课程设计 电子压力器的工作原理 电子压力器由压力传感器，A/D转换器，数码显示等组成。 (MCU Design pressure of the working principle electronic pressure is controlled by electronic pressure sensor, A/D converter, digital display and other components.)

温湿度串口检测程序，实现对数据的读取和检测(Temperature and Humidity Serial Port Detection Program for Data Reading and Detection)

通过51单片机设计一个电子时钟，精确到秒，可以通过按键调节时间(By 51 microcontroller design an electronic clock, accurate to seconds, you can adjust the time by pressing a button)

基于STM32F4的示波器的源代码，内部含有ucos-ii操作系统。(STM32F4 based oscilloscope source code contains an internal ucos-ii operating system.)

DS1302+DS18B20+无线遥控应用程序(DS1302+ DS18B20+ wireless remote control applications)