code: function getModuleFilesPath(bpath, mpath){
      if(!getModuleFilesPath.path){
          var bowerrc = path.join(bpath, '.bowerrc');
  
          utils.log("检查配置文件(check).bowerrc: ", bowerrc);
  
          if(!mpath && fs.existsSync(bowerrc) && (mpath = utils.readjson(bowerrc).directory)){
              utils.log("检查配置项(check)bowerrc.directory: ", mpath);
          }else {
              mpath = "./bower_components";
              utils.log("检查默认(check)bower_compontents: ", mpath);
          }
          getModuleFilesPath.path = path.resolve(bpath, mpath);
      }
  
      return getModuleFilesPath.path;
  }
docs: 配置文件只需获取一次