注：fopen中使用的“r ”将指示文件以只读方式打开。

Note: the "r" used in fopen indicates that the file is open for reading only.

youdao

以只读方式打开，放置在文件开头的文件指针。

Open for reading only; place the file pointer at the beginning of the file.

youdao

以只读方式打开，放置在文件开头的文件指针。

Open for reading only; place the file pointer at the beginning of the file.

youdao