The time spent seeing whether the language authors have already provided a libraryroutine or function to do something you suspect would be a commonly needed function is well spent.
您值得花一些时间查看语言创建者是否已经提供了一种库例程或函数，可以执行您通常需要的功能。
2
Remember that the getopt libraryroutine is general in nature, and not every command line option is expected to have an associated value.
请记住，getopt库例程本质上是通用的，而且并非每个命令行选项都有相关联的值。
3
Flush data in writer processes before unlocking a file by either calling C's flush libraryroutine or the flush method (if you prefer a C++ fstream).
在解锁文件之前，通过调用 C 的 flush 库例程或 flush 方法（如果喜欢使用 C++ fstream 的话），刷新写入者进程中的数据。