DTMF 接受系统的程序设计流程图 及汇编语言-DTMF procedures acceptable to the system design flow chart and assembly language

C语言是一种计算机程序设计语言。它既具有高级语言的特点，又具有汇编语言的特点。它可以作为工作系统设计语言，编写系统应用程序，也可以作为应用程序设计语言，编写不依赖计算机硬件的应用程序。-C language is a computer programming language. It has the characteristics of high-level language, but also has the characteristics of assembly language. It c