It shows appropriate use of some system calls and library functions from c, including fopen, fclose, access, setvbuf, perror, strerror, and popen.

它演示了对一些系统调用和c库函数的适当使用，其中包括fopen、fclose、access、setvbuf、perror、strerror和popen。

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System calls vs. library functions — and a bit of history.

系统调用与库函数比较—以及一点历史知识。

youdao

System calls vs. library functions — and a bit of history.

系统调用与库函数比较—以及一点历史知识。

youdao