Preparation before development

Node environment
- Requirement in package.json："node": ">=10.22.0"
- Verify nodejs version
```
node -v
```
Yarn
- Install yarn
```
npm install -g yarn
```
Install dependencies
- Execute in the project root directory, which is the same level as package.json, and wait patiently for the installation to complete
```
yarn install
```
Prepare a usable backend
- Prepare an accessible backend, for example: https://172.20.154.250
- Add file config/local_config.yaml:
```
server: https://172.20.154.250
```
Configure access host and port
- The default configuration is in config/config.yaml
  - host is 0.0.0.0
  - port is 8088
  - If the current configuration does not need to be changed, the following steps do not need to be operated.
- Added file config/local_config.yaml
- Add host and port configurations
```
host: localhost
port: 8080
```
Completed
- Execute in the project root directory, which is the same level as package.json
```
yarn run dev
```
- Use the host and port configured in config/config.yaml or config/local_config.yaml to access, such as http://localhost:8088
- The front-end real-time update environment used for development is done.

Front-end package used in production environment

Have the required nodejs and yarn
Execute in the project root directory, which is the same level as package.json
```
yarn run build
```
The packaged files are in the dist directory and handed over to the deployment personnel.

Have the required nodejs and yarn
Execute in the project root directory, which is the same level as package.json
```
yarn run build:test
```
The packaged files are in the dist directory
Attention! ! ! This test package is designed to measure code coverage
It is recommended to use nginx to complete the E2E test with code coverage.