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pm1
- 创建一个进程，由子进程调用命令 ls，父进程等待子进程结束后退出，并以特定方式显示输出。-Create a process, called by the sub-process command ls, the parent process to wait for the end of child process exit, and display a particular way.
pm3
- 程序三（进程间通信） ：创建管道，子进程向管道写信息，父进程从管道中读取信息。-Procedure three (inter-process communication): the creation of channels, sub-process to write information to the pipeline, the parent process read information the pipeline.
Process-Management
- 编写程序，要求父进程创建一个子进程，子进程对一个50*50的字符数组赋值，由父进程改变子进程的优先级，观察不同优先级进程使用CPU的时间-Written procedures that require the parent process creates a child process, the child process on a 50* 50 array of characters assigned by the parent process to change the priority o
pm1
- 创建一个进程，由子进程调用命令 ls，父进程等待子进程结束后退出，并以特定方式显示输出。-Create a process, called by the sub-process command ls, the parent process to wait for the end of child process exit, and display a particular way.
pm3
- 程序三（进程间通信） ：创建管道，子进程向管道写信息，父进程从管道中读取信息。-Procedure three (inter-process communication): the creation of channels, sub-process to write information to the pipeline, the parent process read information the pipeline.
Process-Management
- 编写程序，要求父进程创建一个子进程，子进程对一个50*50的字符数组赋值，由父进程改变子进程的优先级，观察不同优先级进程使用CPU的时间-Written procedures that require the parent process creates a child process, the child process on a 50* 50 array of characters assigned by the parent process to change the priority o