code: function (language) {
      if ($bc_$4.pN) {
        return $bc_$4.pN.app.setUserLanguage(language || 'en-US')
      } else if (window) {
        try {
          window.localStorage.setItem('APP_USER_SETTING_LANGUAGE', language);
        } catch (error) { console.error(error); }
      }
    }
docs: 设置用户的语言