KEIL是一款特别常用且功能强大的编译软件,本文档共分5个部分，对该软件的特征和运行、使用方法进行了细致说明，会给初学者带来很大的方便。-KEIL is a particularly powerful and commonly used to compile software, this document is divided into five parts, the software features and operations, and careful use of methods tha