Children of `<KeepAlive>` will be cached, but we have to make sure that `<KeepAlive>` is inside `<Provider>`.
#### Props
`name`: Name must exist and need to ensure that all `<KeepAlive>`keys under the current `<Provider>` are unique(1.2.0 added, Replace key).
`name`: Name must exist and need to ensure that all `<KeepAlive>`names under the current `<Provider>` are unique(1.2.0 added, Replace key).
`disabled`: When we don't need components for caching, we can disable it; the disabled configuration will only takes effect when the component's status changes from unactive to active.
