Vs compiler annotation style

This chapter is an introduction.

It mainly introduces C The annotation style of language ,C++ The annotation style of , How to quickly annotate a large piece of code , Why do you need comments .

Now? VS The compiler has two annotation styles ：

1. C Notes on language style /*xxxxxxxx*/
   defects ： You can't nest comments , Because when nested calls, you only encounter */ It will be considered as the end of nesting , It doesn't match .
   
2. C++ Style notes //xxxxxxx
   You can comment on one line or multiple lines .
   

How to annotate a large piece of code at once

First let's open up VS compiler , Then, as shown in the figure, there are two function keys in the item bar ： Comment row and Uncomment , The shortcut key for the comment line is （Ctrl + K + C）, The shortcut key for undoing comments is （Ctrl + K + U）.

Then select a piece of code and press the function key or shortcut key to complete the comment

Why do you need comments ？

1. Comments can help you sort out your thoughts when you write code ;
2. Explain complex code , Increase readability ;
3. Write comments when writing code , Helping others is also helping yourself ;

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