Finally, list sharing is achieved between different sites! Haha

SharePoint has been plagued by several problems, such as Repoting service and list sharing.
Now the list sharing has been solved!
For example, the whole site requires a city code table, which is maintained on the primary site. Other places use the city as the item for reference.
1: Create a list on the main site: City, field: city code, city name
2: modify all website settings, select the website bar, create the website bar, and select a custom group. A memorable name, such as my website bar, is displayed as a query item, select the city name in the city list to complete the establishment of this website bar.
3, select and add the column to be added to the right link, and click OK.
4: Create a new list. Have you implemented the required functions! Haha!