PPM

Nehe的opengl全部教程，适用于c++语言，适合初学者。(All Nehe' s opengl tutorials for c++ language, suitable for beginners.)

TF卡内部通信协议7816中文版,TF卡编程必须(TF card internal communication protocol 7816 Chinese version)

To overcome the speed difference between the internal clock of KS0066U and the MPU clock, KS0066U performs internal operations by storing control in formations to IR or DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus (Refer to Table7).

How to make ticketing application

说明：  工具说明，EDA工具的DataSheet，简单介绍及相关的参考文档(Tool Description, Data Sheet of EDA Tool, Brief Introduction and Related Reference Documents)

介绍如何使用系统自带的API函数访问与操作计算机硬件。(Describes how to use the system s own API function to access and operation of computer hardware.)

The Puzzle Book Puzzles for the c Programming Language Alan R. Feuer

This one of the good tutorial about SQL for beginners.

计算几何,英文版,写的十分详细,适合初学者入门学习,老手也可丛中学到不少知识(Computational geometry, English, written in great detail, suitable for beginners study entry, a pair of veterans may also learn a lot of knowledge)

说明：  波形发生器仿真图，可调节频率，幅值。可以产生方波三角波正弦波。使用Multisim14.1及以上打开(Waveform generator simulation chart, adjustable frequency, amplitude. It can produce square wave, triangle wave and sine wave. Open with Multisim 14.1 and above)