Problem 1: Details. After vsCode is opened, because it is used for the first time, it needs to be installed first.
Methods:
1. NPM install => Install
2. NPM run dev => run/(run locally) NPM run dev — –port 8080 –host 192.168.181.110
Problem 2: Switching from package mode to development mode
Methods:
1. Modify the first part
2. Modify the second part
3. Modification in the third place (the specific situation is modified as above)
Save it and run it. Done!