控制系统PPt，详细讲述了控制系统的基本原理和方法-Control system PPt, detailed account of the basic principles and methods of control systems

对51单片机做了一个总括的描述，通向高级编程的基础之路-good and perfect

这是单片机51系列的课程学习资料，有理论讲解，也有简单程序实例，对初学者很有帮助的-This is a series of single-chip 51 course learning materials, there are theories to explain, there are simple instance, very helpful for beginners