import { Switch, Route, Router } from 'react-router'; import { Swtich, Route, BrowserRouter, HashHistory, Link } from 'react-router-dom'; 1, api React-router： provides the core api of the route. Such as Router, Route, Switch, etc., but does not provide api; for routing redirection for dom operations React-router-dom： provides api such as BrowserRouter, Route, Link, etc., which can trigger events to control routing through dom actions. Link component, which renders an a tag; BrowserRouter, which uses pushState and popState events to build routes, and HashRouter components, which use hash and hashchange events to build routes. 2, dynamic route hopping React-router： this.props.history.push ('/ path') above router4.0 to jump; this.props.router.push ('/ path') above router3.0 to jump; React-router-dom： use this.props.history.push ('/ path') to jump directly 3, differences in use react-router-dom extends the api of operable dom on the basis of react-router. both Swtich and Route import the corresponding components from react-router and re-export them without any special treatment. there is a dependency on react-router in the package.json dependency in react-router-dom, so there is no need for npm to install react-router. you can install react-router-dom directly with npm and use its api.