问题描述
为什么DOS/Windows和Mac决定使用\ r \ n和\ r而不是\ n来结束行?这仅仅是试图与Unix有所不同"的结果吗?
Why did DOS/Windows and Mac decide to use \r\n and \r for line ending instead of \n? Was it just a result of trying to be "different" from Unix?
现在Mac OS X是Unix(类似)，Apple是否从\ r切换到\ n?
And now that Mac OS X is Unix (-like), did Apple switch to \n from \r?
推荐答案
DOS从CP/M继承了CR-LF行尾(您称呼\ r \ n，只是使ascii字符清晰可见). CP/M是从影响CP/M设计师Gary Kildall的各种DEC操作系统继承过来的.
DOS inherited CR-LF line endings (what you're calling \r\n, just making the ascii characters explicit) from CP/M. CP/M inherited it from the various DEC operating systems which influenced CP/M designer Gary Kildall.
使用CR-LF，以便电传打字机将打印头返回到左边距(CR =回车)，然后移至下一行(LF =换行).
CR-LF was used so that the teletype machines would return the print head to the left margin (CR = carriage return), and then move to the next line (LF = line feed).
Unix家伙在设备驱动程序中进行了处理，并在需要时将LF转换为CR-LF，输出到需要它的设备上.
The Unix guys handled that in the device driver, and when necessary translated LF to CR-LF on output to devices that needed it.
而且您猜到了，Mac OS X现在使用LF.
And as you guessed, Mac OS X now uses LF.
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