简单的小程序,实现的是随机出10道四则运算的题目,同时可以批改和打分。主要在界面方面花了点时间-simple small programs to achieve the 10 random out four computing topics, but can also mark and scoring. The main interface spent time
进程管理中的进程通信 父进程和子进程间的通信 以及五种通信方式-process management of the process of communication process and the father of the child process and the communication between the five means of communication