本程序用于获取shell的输出，可用于处理程序间的通信，





程序具体实现原理为应用了Linux中的管道技术，





内附代码和运行程序，请在Linux下运行此程序

-The procedure used to obtain the shell output, can be used for communication between processes, procedures, principles for the application specific implementation of Linux in the pipeline, containing the code and run the program, run this program under Linux