docs: function (resourcePath, ext) {
              var self = this;
              var staticPath;
              if (_.isEmpty(self.map)) {
                  // map 为空时, 直接拼接路径, 并确保文件存在
                  staticPath = FileLoader.matchFile(path.join(self.staticPath, resourcePath) + ext);
                  if (staticPath) {
                      staticPath = staticPath.substr(staticPath.indexOf(self.staticFolder));
                  }
              } else {
                  var resourceKey = resourcePath + ext;
                  var result = self.map['res'] && self.map['res'][resourceKey];
                  staticPath = result && result.uri;
              }
              return staticPath;
          }