在VC开发环境下利用所提供的clock（）函数，实现先来先服务算法的模拟；可以用一个空循环或其他操作来模拟一个作业量，建议输入的作业量都在100－1000为宜。通过程序运行结果所显示的“作业号、作业量、提交时间、开始运行时间、执行时间、等待时间”的值来体现先来先服务原则。帮助学生加深了解作业调度的工作。-VC development environment using the supplied clock () function to achieve a first-come first-served algorithm simulation　give an empty loop or other operations to simulate an amount of work, it is recommended that the amount of work input in 100-1000 is appropriate. The value shown by the result of the program, the job number, the amount of work, submit time, run time, execution time, waiting time " to reflect the principle of first come first served. To help students better understand the work of job scheduling.