文件头注释：

/******************************************************************************
 * Copyright(c) 2000-2013 Company Name                                        *
 * All rights reserved.                                                       *
 *                                                                            *
 * @license                                                                   *
 *                                                                            *
 *****************************************************************************/
/**
 * @file
 * @brief
 *
 * @version
 * @author
 * @email
 * @date
 *  
 *
 * Change History:
 * @author
 * @email
 * @date
 * @brief
 *  
 */

函数注释：

/**
 * @brief
 *
 *
 * @param[in]  parameter_1
 *              -: a
 *              -: b
 * @param[in]  parameter_2
 * @param[out] parameter_3
 * @exception
 * @return
 * @retval  NULL
 * @retval  !NULLs
 *
 * @note
 * @par
 * @code:
 *
 * @endcode
 * @see  http://www.stack.nl/~dimitri/doxygen/docblocks.html
 * @deprecated
 * @remarks
 */

类定义处注释：

/**
 * @class
 * @brief
 *
 * @author
 * @note
 *
 */

命名空间定义处注释：

/**
 * @brief  
 *
 */

分组定义： 例如：

/**
 * @name PI constant
 * @{
 */
#define PI 3.1415926737
/** @} */

再例如：

/**
 * @name length of array
 * @{
 */
const int g_ARRAY_MAX = 1024;
/** @} */

变量定义：

int movieFrame[100];    ///< Array of MPEG frame sizes (bytes)
int numFrame;           ///< Number of MPEG frames in array

整体示例如下doxygen_c.h：

/****************************************************************************
 * Copyright (C) 2012 by Matteo Franchin                                    *
 *                                                                          *
 * This file is part of Box.                                                *
 *                                                                          *
 *   Box is free software: you can redistribute it and/or modify it         *
 *   under the terms of the GNU Lesser General Public License as published  *
 *   by the Free Software Foundation, either version 3 of the License, or   *
 *   (at your option) any later version.                                    *
 *                                                                          *
 *   Box is distributed in the hope that it will be useful,                 *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *   GNU Lesser General Public License for more details.                    *
 *                                                                          *
 *   You should have received a copy of the GNU Lesser General Public       *
 *   License along with Box.  If not, see <http://www.gnu.org/licenses/>.   *
 ****************************************************************************/

/**
 * @file doxygen_c.h
 * @author My Self
 * @date 9 Sep 2012
 * @brief File containing example of doxygen usage for quick reference.
 *
 * Here typically goes a more extensive explanation of what the header
 * defines. Doxygens tags are words preceeded by either a backslash @\
 * or by an at symbol @@.
 * @see http://www.stack.nl/~dimitri/doxygen/docblocks.html
 * @see http://www.stack.nl/~dimitri/doxygen/commands.html
 */

#ifndef _BOX_PROTOTYPES_DOXYGEN_H
#  define _BOX_PROTOTYPES_DOXYGEN_H

#  include <systemheader1.h>
#  include <systemheader2.h>

#  include <box/header1.h>
#  include <box/header2.h>

#  include "local_header1.h"
#  include "local_header2.h"

/**
 * @brief Use brief, otherwise the index won't have a brief explanation.
 *
 * Detailed explanation.
 */
typedef enum BoxEnum_enum {
  BOXENUM_FIRST,  /**< Some documentation for first. */
  BOXENUM_SECOND, /**< Some documentation for second. */
  BOXENUM_ETC     /**< Etc. */
} BoxEnum;

/**
 * @brief Use brief, otherwise the index won't have a brief explanation.
 *
 * Detailed explanation.
 */
typedef struct BoxStruct_struct {
  int a;    /**< Some documentation for the member BoxStruct#a. */
  int b;    /**< Some documentation for the member BoxStruct#b. */
  double c; /**< Etc. */
} BoxStruct;

/**
 * @brief Example showing how to document a function with Doxygen.
 *
 * Description of what the function does. This part may refer to the parameters
 * of the function, like @p param1 or @p param2. A word of code can also be
 * inserted like @c this which is equivalent to <tt>this</tt> and can be useful
 * to say that the function returns a @c void or an @c int. If you want to have
 * more than one word in typewriter font, then just use @<tt@>.
 * We can also include text verbatim,
 * @verbatim like this@endverbatim
 * Sometimes it is also convenient to include an example of usage:
 * @code
 * BoxStruct *out = Box_The_Function_Name(param1, param2);
 * printf("something...\n");
 * @endcode
 * Or,
 * @code{.py}
 * pyval = python_func(arg1, arg2)
 * print pyval
 * @endcode
 * when the language is not the one used in the current source file (but
 * <b>be careful</b> as this may be supported only by recent versions
 * of Doxygen). By the way, <b>this is how you write bold text</b> or,
 * if it is just one word, then you can just do @b this.
 * @param param1 Description of the first parameter of the function.
 * @param param2 The second one, which follows @p param1.
 * @return Describe what the function returns.
 * @see Box_The_Second_Function
 * @see Box_The_Last_One
 * @see http://website/
 * @note Something to note.
 * @warning Warning.
 */
BOXEXPORT BoxStruct *
Box_The_Function_Name(BoxParamType1 param1, BoxParamType2 param2 /*, ...*/);

/**
 * @brief A simple stub function to show how links do work.
 *
 * Links are generated automatically for webpages (like http://www.google.co.uk)
 * and for structures, like BoxStruct_struct. For typedef-ed types use
 * #BoxStruct.
 * For functions, automatic links are generated when the parenthesis () follow
 * the name of the function, like Box_The_Function_Name().
 * Alternatively, you can use #Box_The_Function_Name.
 * @return @c NULL is always returned.
 */
BOXEXPORT void *
Box_The_Second_Function(void);

/**
 * Brief can be omitted. If you configure Doxygen with
 * <tt>JAVADOC_AUTOBRIEF=YES</tt>, then the first Line of the comment is used
 * instead. In this function this would be as if
 * @verbatim @brief Brief can be omitted. @endverbatim
 * was used instead.
 */
BOXEXPORT void
Box_The_Last_One(void);

#endif /* _BOX_PROTOTYPES_DOXYGEN_H */