Initial commit

web/src/pages/NotFound/index.js

@@ -0,0 +1,20 @@
+import React from 'react';
+import { Segment, Header } from 'semantic-ui-react';
+
+const NotFound = () => (
+  <>
+    <Header
+      block
+      as="h4"
+      content="404"
+      attached="top"
+      icon="info"
+      className="small-icon"
+    />
+    <Segment attached="bottom">
+      未找到所请求的页面
+    </Segment>
+  </>
+);
+
+export default NotFound;