Bash
#This is a comment.
PHP
// This is a single-line comment.
# This is also a single-line comment.
/*
This is a multiple-lines comment block.
*/
Python
# This is a comment.
"""
This is a multiple-lines comment block.
"""
HTML
<!--This is a comment.-->
Jacascript
// This is a single-line comment./*
This is a multiple-lines comment block.
*/
CSS
/*
This is a multiple-lines comment block.
*/
Perl
#This is a comment.
C
/* This is a comment.*/
C++
// This is a single-line comment.
