IOS函数注释

/*!

    @method setMainDocumentURL:

    @abstract Sets the main document URL

    @param URL The main document URL.

    @discussion The caller should pass the URL for an appropriate main

    document, if known. For example, when loading a web page, the URL

    of the main html document for the top-level frame should be

    passed.  This main document will be used to implement the cookie

    "only from same domain as main document" policy, and possibly

    other things in the future.

    NOTE: In the current implementation, the passed-in value is unused by the

    framework. A fully functional version of this method will be available 

    in the future. 

*/

/**********************************************************************

 * 函数名称:

 * 功能描述: 

 * 输入参数:

 * 输出参数:

 * 返 回 值: 

 * 其它说明:

 * 修改日期 版本号 修改人 修改内容

 * ---------------------------------------------------------------------

 * 2012/4/20 1.0

 **********************************************************************/