code: function (server, app) {
    let env = app.get(Constants.RESERVED.ENV);
    let p = path.join(app.getBase(), app.get(Constants.RESERVED.SERVICE_PATH), Constants.FILEPATH.CRON);
    if (!fs.existsSync(p)) {
      p = path.join(app.getBase(), Constants.FILEPATH.CONFIG_DIR, env, path.basename(Constants.FILEPATH.CRON));
      if (!fs.existsSync(p)) {
        return;
      }
    }
    app.loadConfigBaseApp(Constants.RESERVED.CRONS, app.get(Constants.RESERVED.SERVICE_PATH), Constants.FILEPATH.CRON);
    let crons = app.get(Constants.RESERVED.CRONS);
    for (let serverType in crons) {
      if (app.serverType === serverType) {
        let list = crons[serverType];
        for (let i = 0; i < list.length; i++) {
          if (!list[i].serverId) {
            checkAndAdd(list[i], server.crons, server);
          } else {
            if (app.serverId === list[i].serverId) {
              checkAndAdd(list[i], server.crons, server);
            }
          }
        }
      }
    }
  }
docs: Load crons from configure file