我不确定为什么在我更改查询参数后它会显示默认路由。有没有更好的方法来解决这种问题？也许我不应该使用查询参数？敞开心扉接受教育！

版本 "react": "^16.2.0", "react-dom": "^16.2.0", "react-router": "^4.2.0", "react-router-dom": "^4.2. 2",

测试用例 https://codepen.io/adamchenwei/pen/YeJBxY?editors=0011

重现步骤点击首页->步骤1

预期行为转到第 1 步和第 2 步渲染正确的 dom

实际行为为空，页面上没有任何内容呈现

// For this demo, we are using the UMD build of react-router-dom
const {
  BrowserRouter,
  Switch,
  Route,
  Link
} = ReactRouterDOM

const {
  Component,
} = React;

const Router = BrowserRouter;

const Step1View = () => (
  <div>
    <h1> Step 1</h1>
  </div>
)

const Step2View = () => (
  <div>
    <h1> Step 2</h1>
  </div>
)

class Home extends Component {
  constructor(props) {
    super(props);
    console.log('-!!!')
    this.state = {
      step: 1,
    }
    this.next = this.next.bind(this);
  }

  next(stepNumber=1) {
    this.props.history.push({
      pathname: `/adamchenwei/pen/YeJBxY?editors=0011/?step=${stepNumber}`,
    });
    const query = this.props.history.location.pathname;
    console.log('---aaaaa');
    console.log(query);
    if (query === '/adamchenwei/pen/YeJBxY?editors=0011/?step=1') {
      this.setState({
        step: 1,
      })
    } else if (query === '/adamchenwei/pen/YeJBxY?editors=0011/?step=2') {
      this.setState({
        step: 2,
      })
    }
  }
  render() {
    console.log('render!!!');
    console.log(this);
    const {
      step
    } = this.state;
    console.log('---step');
    console.log(step);
    return(
      <div>
        <h1>Welcome to the Tornadoes Website!</h1>
        <button onClick={()=> this.next(1)} > Step 1</button>
        <button onClick={()=> this.next(2)} > Step 2</button>
        {
          step === 1 ? <h1>Step 1 here</h1> : null
        }
        {
          step === 2 ? <h1>Step 2 here</h1> : null
        }
      </div>

    );
  }
}

// The Main component renders one of the three provided
// Routes (provided that one matches). Both the /roster
// and /schedule routes will match any pathname that starts
// with /roster or /schedule. The / route will only match
// when the pathname is exactly the string "/"
const Main = () => (
  <main>
    <Route exact path='/' component={Home}/>
  </main>
)

// The Header creates links that can be used to navigate
// between routes.
const Header = () => (
  <header>
    <nav>
      <ul>
        <li><Link to='/'>Home</Link></li>
        <li><Link to='/roster'>Roster</Link></li>
        <li><Link to='/schedule'>Schedule</Link></li>
      </ul>
    </nav>
  </header>
)

const App = () => (
  <div>
    <Header />
    <Main />
  </div>
)

// This demo uses a HashRouter instead of BrowserRouter
// because there is no server to match URLs
ReactDOM.render((
  <Router>
    <App />
  </Router>
), document.getElementById('root'))