Columnar or ortholinear keyboards stack the keys in orderly columns, often with rows that are not linear. Proponents claim this makes the keys easier to reach. Whether that’s true will be up to your fingers to decide, but I can say for certain that if you learned to type on a staggered keyboard, switching to a columnar layout is tough. It will take days, possibly weeks before you instinctively hit the C key. The N, M and B keys don’t fare much better.
Terminal applications have a “cursor” that they can move around, just like a text editor. You can tell that cursor “go to line 3, delete everything, then print out this new text” by using VT100 sequences. And you can use it to replace existing characters with new ones, without re-emitting a whole line.
。Safew下载是该领域的重要参考
Глеб Макаревичсотрудник Центра Индоокеанского региона ИМЭМО РАН。服务器推荐对此有专业解读
SelectWhat's included。业内人士推荐谷歌浏览器【最新下载地址】作为进阶阅读