本文内容是采用统一建模语言（UML）对一个嵌入式系统进行面向对象分析和设计的实例。被分析的系统是一个数字录音机或称口授留声机。设计实现采用一个嵌入式微处理器和C++编码。-This article is the use of Unified Modeling Language (UML) of an embedded object-oriented systems analysis and design examples. By the analysis system is a digital tape recorder or dictation phonograph. Design using an embedded microprocessor and C++ code.