I still don’t quite understand what pre means.

Question

I still don’t understand the meaning of pre

Answer 1

In fact, to put it simply, it is the same as printing. Those words will occupy the position if printed, but those spaces will be regarded as unsigned, and there will still be data occupying the position, but the data will not be displayed. There is actually a lot of difference between the code with spaces and without spaces, so pay more attention

Answer 2

Output as is

Answer 3

The pre element defines preformatted text; text enclosed in a pre element typically preserves spaces and newlines. Just type it in the editor and you will know