添加温馨提示页面

src/App.tsx

@@ -12,6 +12,7 @@ import UI6 from "./pages/UI6/UI6";
 import UI7 from "./pages/UI7/UI7";
 import UI8 from "./pages/UI8/UI8";
 import UI9 from "./pages/UI9/UI9";
+import UI81 from "./pages/UI81/UI81";
 
 function App() {
   const [time, setTime] = useState<string>(() => formatDate(new Date()));
@@ -57,6 +58,7 @@ function App() {
           <Route path="/UI6" element={<UI6 />} />
           <Route path="/UI7" element={<UI7 />} />
           <Route path="/UI8" element={<UI8 />} />
+          <Route path="/UI81" element={<UI81 />} />
           <Route path="/UI9" element={<UI9 />} />
         </Routes>
       </div>