In uni-app, there are several ways to pass values between pages.

1. Passing values using URL parameters: By including parameters in the URL, you can access the parameter values on the target page using this.$route.params.
2. Passing values using global variables: You can define a global variable in App.vue and reference it in the target page.
3. Using Vuex for state management: by defining states in Vuex, different pages can share these states.
4. Passing values using an event bus: Communication and value passing between different pages can be achieved using an event bus.
5. Using local storage for data transmission: You can store data locally using localStorage or sessionStorage, and then retrieve it on the target page.
6. Passing values using the page stack provided by uni-app: You can pass values and communicate between pages using the page stack API provided by uni-app.

These are some common methods for passing values between pages, in actual development, you can choose the appropriate method according to specific needs.