摘要： you are going to take a look at another system directory called /proc. The /proc directory is also known as procfs, and it contains useful information 阅读全文

摘要： The operating system provides a lot of ways for applications to extract information and perform operations. You will look at the different ways to ext 阅读全文

摘要： what is a system call A system call is the interface provided by the underlying operating system that your application is currently running on. Using 阅读全文