程序中设计两个进程：WriteFile（写U盘）进程和Calculate(计算）进程，每个进程大约费时5秒。可通过测试两进程顺序执行程序和并发执行程序的时间来验证操作系统中的分析系统和并发程序设计的含义。-Two processes in the design process: WriteFile (written U plate) process and Calculate (computing) process, each process time-consuming about 5 sec