摘要： 1. Functions associated with creating a process system : execute a shell command and it's a blocking function system("ls -l"); Create an independent p 阅读全文

摘要： 1. ssize_t write(int fd,void *buf,size_t size); fd : File descriptor buf : The data you want to write into a kernal object. size_t size : The size of 阅读全文