Requirement is like title — now I have a project that is used by several provinces, so the title of the page should be different for each user. Every time there is a new business user, I used to search for the alternative region name to change one by one. So I consider using the name of the global variable storage area for a project.

The approach I took was to bind a region name to the data of the entire Vue instance

Then call this.$root.provinceName where you want to use the name of the province to get the variable value, and call the binding at the desired location.