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.
Наука и техника
，更多细节参见91视频
// Can be any thing here that writes into the view
Жители Санкт-Петербурга устроили «крысогон»17:52