求翻译：ASCII标准使得只含有ASCII字符的文本文件可以在Unix、Macintosh、Microsoft Windows、DOS和其它操作系统之间自由交互，而其它格式的文件是很难做到这一点的。但是，在这些操作系统中，换行符并不相同，处理非ASCII字符的方式也不一致。是什么意思？

Standard ASCII text file can only contain ASCII characters in Unix, Macintosh, Microsoft Windows, DOS and other operating systems interact freely between, while files in other formats is difficult to do this. However, these operating systems, the newline character is not the same, how to handle non-