
Solidity supports both C-style and C++-style comments, Thus −
Any text between a // and the end of a line is treated as a comment and is ignored by Solidity Compiler.
Any text between the characters /* and */ is treated as a comment. This may span multiple lines.
The following example shows how to use comments in Solidity.
function getResult() public view returns(uint){
// This is a comment. It is similar to comments in C++
/*
* This is a multi-line comment in solidity
* It is very similar to comments in C Programming
*/
uint a = 1;
uint b = 2;
uint result = a + b;
return result;
}