first commit

历届学生/front-end-team-11/项目开发/上课项目/hello-react/src/index.js

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+import React from 'react';
+import ReactDOM from 'react-dom/client';
+// import './index.css';
+import App from './App';
+import {BrowserRouter} from 'react-router-dom'
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <BrowserRouter>
+      <App />
+
+    </BrowserRouter>
+  </React.StrictMode>
+);