Add shortcode [code]some code[/code] to wordpress

add_code_shortcode

<?php
/*
Plugin Name: Code Shortcode
Description: Add shortcode [code]some code[/code] to wordpress
Version: 1.0
Author: Karen Baker
License: GPL2
*/


add_action( 'wp_enqueue_scripts', 'prefix_code_add_my_stylesheet' );

function prefix_code_add_my_stylesheet() {
  wp_register_style( 'prefix-code-style', plugins_url('style.css', __FILE__) );
  wp_enqueue_style( 'prefix-code-style' );
}

add_shortcode( 'code', 'sc_code' );

function sc_code( $atts, $content = null ) {
		return '<code>'.$content.'</code>';
}

?>