Using your big toe as a pointer, tracing the alphabet as if you were writing in the sand.

把你的大脚趾当做一个指针书写英文字母，就像在沙地上写字母一样。

youdao

Open for reading and writing; place the file pointer at the end of the file.

打开阅读和写作，在文件结尾处的文件指针。

youdao

Create and open for writing only; place the file pointer at the beginning of the file.

创建并打开只写，放置在文件的开头文件指针。

youdao