/**
 * 根据登录名查找用户
 * Callback:
 * - err, 数据库异常
 * - user, 用户
 * [[[[[[[[[[[[[[[[[[[[[@param](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param) {String} loginName 登录名
 * [[[[[[[[[[[[[[[[[[[[[@param](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param) {Function} callback 回调函数
 */
exports.getUserByLoginName = function (loginName, callback) {
  User.findOne({'loginname': loginName}, callback);
};

/**

• 根据登录名查找用户
• Callback:
• • err, 数据库异常
• • user, 用户
• [[[[[[[[[[[[[[[[[[[[@param](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param) {String} loginName 登录名
• [[[[[[[[[[[[[[[[[[[[@param](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param)](/user/param) {Function} callback 回调函数 */

还有vim有没有什么好的插件可以生成方法的comment，谢谢