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说明：  多个趣味小程序，用c编写，简洁易懂，适用于初学者进行下载、学习！(A number of interesting small programs, using c prepared, concise and understandable for beginners to download and learn!)

实现大小写互换，即输入大写子母程序会自动转成小写子母(Realization case swap)

说明：  电子地图管理系统，实现文件的读取，检索，与排序(Electronic map management system, document read, search, and sort)

本程序可对EXCEL文件进行读写，同时建立了一个专门访问EXCEL文件的类CExcel，可供大家参考。(This procedure can be carried out on the EXCEL file to read and write, while the establishment of a specialized type of access EXCEL file CExcel, for your reference.)

进程调度是处理机管理的核心内容,本实验要求用C语言编写和调试一个简单的进程调度程序(Process scheduling is the core content of the processor management, this experiment requirement written in C language and debugging process scheduling is a simple procedure)

just some source of cheat engine

动态数组应用实例。将动态数组运用于房间的计算，包括房间个数，总面积，平均面积，最大以及最小房间面积等(Dynamic array application example. Dynamic arrays used in the calculation of the room, including the room number, the total area, average size, maximum and minimum room size, etc.)

锁定显示器时自动关闭计算机屏幕，节约能源(Automatic shutdown the computer lock screen display, energy saving)

用于的峰值的探测，能够较好的获得波峰和波谷。(peak detection。)

谭浩强C程序设计第四版第8章习题答案,自己做出来的( C Programming Fourth Edition Chapter 8 Exercise answers, do it yourself)