这是一管道程序，两个工程运行起来后，可利用管道相互通讯。-This is a pipeline process, the two projects up and running, you can communicate with each other using pipes.

管道通信的一个小程序，通过管道传递一个数据结构，程序比较容易理解-Pipeline Communications is a small program, a data structure to pass through the pipeline, the program easier to understand