xl2000user

实现键盘扫描0-F，可以用来检测键盘的输入(The realization of the keyboard scan 0-F, can be used to detect keyboard input)

关于简单四则运算 每次可给出5题 累加正确题数 计算正确率(About four simple arithmetic can be given five questions each time cumulative number of questions correctly calculate the correct rate)

用KEIL-C编写的交通灯源代码 对课程设计的朋友很有帮助的(KEIL-C prepared by the traffic lights at the source code of the Friend of the curriculum design helpful)

说明：  光栏法的基本思想是（图1）：定义一个扇形区域，通过判断曲线上的点在扇形外还是在扇形内，确定保留还是舍去。(The basic idea of ​ ​ light field is (Figure 1): definition of a fan-shaped region, by determining the point on the curve outside the sector or sector, to identify the retained or discarded.)

逻辑电平接口设计规范逻辑电平接口设计规范(Logic level interface design specification Logic level interface design specification )

计算方法高斯列主元消去法C程序 保证好用(Method of calculating Gaussian elimination pivot column C program to ensure easy to use)

单片机汇编程序，来自xll200user，可以供初学者使用(MCU assembler)

此为笔者整理的大学C语言常考程序题，供大家参考学习(C language)

图书管理系统，分管理者和读者不同权限，可实现对书籍的管理，读者的管理等(Library management system, sub-managers and readers with different permissions)

空间后方交会c++源代码，欢迎广大同胞下载(Space resection c++ source code, welcome compatriots download)