This paper presents a method and implementation techniques to generate control flow graph from source program.
本文给出了一种由源程序生成其对应的控制流图的方法和实现技术。
It detailed introduced composing of the PLC elevator control system, design of the hardware and soft, how to weave control program in graph of elevator for example.
以实例介绍了PLC电梯控制系统的组成、其硬件和软件的设计以及怎样用电梯图来编制系统的控制程序。
In accordance with the characteristics and coverage requirement of path coverage test as well as the graph theory, this paper presents a new program control flow diagram model.
针对路径测试的要求及其特点，结合图论的概念，提出了程序控制流程图的一种表示方法。
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