This is not a direct question about C++ but I got no place to ask it but just here, guys. I will delete the post if you guys don't like it here.
I just set up visual studio of microsoft, and I found that it provides a convenient function to show special characters automatically that I am supposed to type.
For example, it shows character '>' just right after I type '#include<'.
Yes, I was about to type '#include<iostream>'
So what I'm saying is this is very convenient and good function but it may not be so helpful for some people who just started studying programming just like me.