想要学习单片机，建立一个单片机学习环境至关重要。为此既可以用传统的方式，也可以借助于网络，网络上有很多有用的资源，利用这些资源，爱好者可以廉价和快速地建立自己的软、硬件学习环境。网上学单片机的入门篇将带领大家走遍“五湖四海”，搜寻有用的资源。-Want to learn microcontroller, a microcomputer learning environment is essential. To this end both the traditional way, but also to learn from the network, the network there are many useful resources, the use of these resources can be made cheaply and quickly enthusiasts to build their own hardware and software learning environment. Introductory chapter MCU-net will lead us walking along the " corners of the country"　to search for useful resources.