## **Background** Because the module development of CabloyJS follows the `principle of opening and closing`, in actual projects, project level parameters can be used to override module level parameters, so that we can customize module behavior parameters from the project level ## **Override Module Config** Since config supports multiple scenes, you can configure parameters in the appropriate scene config file as needed. For example, if we need to modify the parameters in the module `test-party` to take effect in all scenes, we need to modify the file `config.default.js` `src/front/config/config.default.js` ``` javascript export default{ modules: { 'test-party': { message: 'Hello World!', markCount: 3, }, }, }; ```