content: import React from 'react';
  import { connect } from 'dva';
  import { withRouter } from 'dva/router';
  import MainLayout from '../components/MainLayout/MainLayout';
  const App = ({children, location, history}) => {
      return (
          <MainLayout location={location} history={history} >
              {children}
          </MainLayout>
      )
  }
  
  
  // 没有被渲染
  export default withRouter(App);
  