diff --git a/package.json b/package.json
index 8b6efaa..bc18133 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
     "react-scripts": "5.0.1",
     "sha1": "^1.1.1",
     "sha256": "^0.2.0",
+    "uuid": "^9.0.0",
     "web-vitals": "^2.1.4"
   },
   "scripts": {
diff --git a/src/App.js b/src/App.js
index e73470d..f563fdd 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,7 +1,6 @@
-import { useEffect } from 'react';
 import { Routes, Route, Navigate, useNavigate } from 'react-router-dom'
-import { useSelector, useDispatch } from 'react-redux'
-import { setUdid, setAccessToken, setUserInfo, setSelectInfo } from "./business/userSlice.js"
+import { useDispatch } from 'react-redux'
+import { setAccessToken, setUserInfo, setSelectInfo } from "./business/userSlice.js"
 import { useCookies } from 'react-cookie';
 import LoginPage from './LoginPage';
 import MainPage from './MainPage';
@@ -11,24 +10,12 @@ function App() {
   const dispatch = useDispatch();
   const navigate = useNavigate();
   const [cookies, setCookie, removeCookie] = useCookies(['accessToken']);
-  const udid = useSelector(state => state.user.udid)
-
-  const getIp = async () => {
-    const response = await fetch("https://ipapi.co/json/")
-    const data = await response.json()
-    dispatch(setUdid(data.ip));
-  }
-
-  // Run `getIP` function above just once when the page is rendered
-  useEffect(() => {
-    getIp()
-  }, [])
 
   if (cookies.accessToken) {
     dispatch(setAccessToken(cookies.accessToken));
-    yzs.get_user_info(udid, cookies.accessToken).then(info => {
+    yzs.get_user_info(yzs.uniqueDeviceIdentifier(), cookies.accessToken).then(info => {
       dispatch(setUserInfo(info));
-      yzs.user_select(udid, cookies.accessToken).then(info => {
+      yzs.user_select(yzs.uniqueDeviceIdentifier(), cookies.accessToken).then(info => {
         dispatch(setSelectInfo(info));
       });
     }).catch(error => {
diff --git a/src/LoginPage.js b/src/LoginPage.js
index ec3351c..e646705 100644
--- a/src/LoginPage.js
+++ b/src/LoginPage.js
@@ -4,7 +4,7 @@ import Button from '@mui/material/Button';
 import yzs from "./business/request.js";
 import styles from './LoginPage.module.css';
 import { useSelector, useDispatch } from 'react-redux'
-import { setUdid, setFlushToken, setAccessToken, setUserInfo } from "./business/userSlice.js"
+import { setFlushToken, setAccessToken, setUserInfo } from "./business/userSlice.js"
 import logo from './assets/logo.png';
 import { Container, Tab, Box } from '@mui/material';
 import TabPanel from '@mui/lab/TabPanel';
@@ -46,30 +46,27 @@ export default function () {
 
     const accessToken = useSelector(state => state.user.accessToken)
     const flushToken = useSelector(state => state.user.flushToken)
-    const udid = useSelector(state => state.user.udid)
 
     const debug_test = () => {
-        console.log("accessToken", accessToken);
+        console.log("accessToken", accessToken, yzs.uniqueDeviceIdentifier());
     }
     const handleSubmit = (event) => {
         event.preventDefault();
-        console.log(`account: ${account}\nPassword: ${password}  udid: ${udid}`, value);
-
         let result = null;
         if (value === "1") {
-            result = yzs.dynamic_code_login(udid, account, verificationCode);
+            result = yzs.dynamic_code_login(yzs.uniqueDeviceIdentifier(), account, verificationCode);
         } else if (value === "2") {
-            result = yzs.login(udid, account, password);
+            result = yzs.login(yzs.uniqueDeviceIdentifier(), account, password);
         }
         result.then(token => {
             dispatch(setFlushToken(token));
-            yzs.get_access_token(udid, token).then(token => {
+            yzs.get_access_token(yzs.uniqueDeviceIdentifier(), token).then(token => {
                 // yzs.update_access_token(ip.payload, token);
                 dispatch(setAccessToken(token));
                 setCookie("accessToken", token)
-                yzs.get_user_info(udid, token).then(info => {
+                yzs.get_user_info(yzs.uniqueDeviceIdentifier(), token).then(info => {
                     dispatch(setUserInfo(info));
-                    yzs.user_select(udid, token).then(info => {
+                    yzs.user_select(yzs.uniqueDeviceIdentifier(), token).then(info => {
                         navigate("/");
                     })
 
@@ -111,7 +108,7 @@ export default function () {
                             </Box>
 
                             <TabPanel value="1" >
-                                <DynamicCodeForm udid={udid} />
+                                <DynamicCodeForm udid={yzs.uniqueDeviceIdentifier()} />
                             </TabPanel>
                             <TabPanel value="2" >
                                 <PasswordForm />
diff --git a/src/MainPage.js b/src/MainPage.js
index 9906c29..28b72c6 100644
--- a/src/MainPage.js
+++ b/src/MainPage.js
@@ -4,9 +4,10 @@ import AppBar from './AppBar';
 import RecordList from './RecordList';
 import PlayerBar from './PlayerBar';
 import styles from './MainPage.module.css';
+import store from './business/store';
 import yzs from "./business/request.js";
-import { setList } from "./business/recorderSlice.js"
-import { CssBaseline, Box, Container, Typography } from '@mui/material';
+import { setList, setCurrentLyric, setCurrentBlob, setCurrentWaveData } from "./business/recorderSlice.js"
+import { CssBaseline, Box } from '@mui/material';
 import RecordLyrics from './RecordLyrics';
 import { createTheme, ThemeProvider } from '@mui/material/styles';
 
@@ -30,6 +31,35 @@ const theme = createTheme({
 });
 
 
+function fetchRecord(accessToken, record) {
+    yzs.download(accessToken, record.transResultUrl).then(
+        blob => blob.text()
+    ).then(text => {
+        console.log("type", record.type, text);
+        let payload = record.type === 1 ? JSON.parse(text) : text;
+        store.dispatch(setCurrentLyric(payload));
+    });
+    yzs.download(accessToken, record.audioUrl).then(blob => {
+        store.dispatch(setCurrentBlob(URL.createObjectURL(blob)));
+        blob.arrayBuffer().then(arrayBuffer => {
+            let context = new (window.AudioContext || window.webkitAudioContext)();
+            context.decodeAudioData(arrayBuffer).then(audioBuffer => {
+                let interval = audioBuffer.sampleRate / 1000 * 100;
+                let waveData = audioBuffer.getChannelData(0);
+                let wave = [];
+                let amplitude = 0;
+                for (let i = 0; i < waveData.length; i++) {
+                    amplitude += Math.abs(waveData[i]);
+                    if (i % interval == 0) {
+                        wave.push(Math.floor(amplitude * 500 / interval));
+                        amplitude = 0;
+                    }
+                }
+                store.dispatch(setCurrentWaveData(wave));
+            })
+        });
+    });
+}
 
 export default function () {
     const dispatch = useDispatch()
@@ -39,6 +69,9 @@ export default function () {
     useEffect(() => {
         yzs.get_record_list(accessToken, passportId).then(list => {
             dispatch(setList(list.result));
+            if (list.result.length > 0) {
+                fetchRecord(accessToken, list.result.at(0));
+            }
         }).catch(error => {
             console.log("get list failed", error);
         });
@@ -47,7 +80,7 @@ export default function () {
         <ThemeProvider theme={theme}>
             <CssBaseline />
             <AppBar />
-            <RecordList />
+            <RecordList fetchRecord={fetchRecord} />
             <Box
                 component="main"
                 sx={{
diff --git a/src/RecordList.js b/src/RecordList.js
index c07adf7..aed48db 100644
--- a/src/RecordList.js
+++ b/src/RecordList.js
@@ -6,13 +6,14 @@ import List from '@mui/material/List';
 import ListItem from '@mui/material/ListItem';
 import ListItemButton from '@mui/material/ListItemButton';
 import ListItemText from '@mui/material/ListItemText';
+import Typography from '@mui/material/Typography';
 import Toolbar from '@mui/material/Toolbar';
-import { setCurrentIndex, setCurrentLyric, setCurrentBlob, setCurrentWaveData } from "./business/recorderSlice.js"
-import yzs from "./business/request.js";
+import { setCurrentIndex } from "./business/recorderSlice.js"
+import AccessTimeFilledIcon from '@mui/icons-material/AccessTimeFilled';
 
 const drawerWidth = 240;
 
-export default function () {
+export default function ({ fetchRecord }) {
     const dispatch = useDispatch();
     const accessToken = useSelector(state => state.user.accessToken);
     const currentIndex = useSelector(state => state.recorder.currentIndex);
@@ -20,34 +21,7 @@ export default function () {
     const onSelected = (event, index) => {
         console.log("onSelected", index, recordList.at(index).transResultUrl)
         dispatch(setCurrentIndex(index));
-        yzs.download(accessToken, recordList.at(index).transResultUrl).then(
-            blob => blob.text()
-        ).then(text => {
-            console.log("type", recordList.at(index).type, text);
-            let payload = recordList.at(index).type === 1 ? JSON.parse(text) : text;
-            dispatch(setCurrentLyric(payload));
-        });
-        yzs.download(accessToken, recordList.at(index).audioUrl).then(blob => {
-            dispatch(setCurrentBlob(URL.createObjectURL(blob)));
-
-            blob.arrayBuffer().then(arrayBuffer => {
-                let context = new (window.AudioContext || window.webkitAudioContext)();
-                context.decodeAudioData(arrayBuffer).then(audioBuffer => {
-                    let interval = audioBuffer.sampleRate / 1000 * 100;
-                    let waveData = audioBuffer.getChannelData(0);
-                    let wave = [];
-                    let amplitude = 0;
-                    for (let i = 0; i < waveData.length; i++) {
-                        amplitude += Math.abs(waveData[i]);
-                        if (i % interval == 0) {
-                            wave.push(Math.floor(amplitude * 500 / interval));
-                            amplitude = 0;
-                        }
-                    }
-                    dispatch(setCurrentWaveData(wave));
-                })
-            });
-        });
+        fetchRecord(accessToken, recordList.at(index));
     }
     return <Drawer
         variant="permanent"
@@ -57,7 +31,7 @@ export default function () {
             [`& .MuiDrawer-paper`]: { width: drawerWidth, boxSizing: 'border-box' },
         }}
     >
-        <Toolbar />
+        <Toolbar variant="dense" />
         <Box sx={{ overflow: 'auto' }}>
             <List>
                 {recordList === undefined ? <React.Fragment /> : recordList.map((item, index) => (
@@ -65,8 +39,10 @@ export default function () {
                         <ListItemButton selected={currentIndex === index} onClick={(event) => onSelected(event, index)}>
                             <ListItemText primary={item.editName} secondary={
                                 <React.Fragment>
-                                    <div>{item.content.slice(0, 50) + '......'}</div>
-                                    <div>更新于 {new Date(item.createTime).toLocaleString()}</div>
+                                    <Typography component="span" variant="body1">{item.content.slice(0, 50) + '......'}</Typography>
+                                    <br />
+                                    <AccessTimeFilledIcon sx={{ fontSize: 12 }} />
+                                    <Typography component="span" variant="body2"> 更新于 {new Date(item.createTime).toLocaleString()}</Typography>
                                 </React.Fragment>
                             } />
                         </ListItemButton>
diff --git a/src/business/request.js b/src/business/request.js
index 4eb0fd2..97c7047 100644
--- a/src/business/request.js
+++ b/src/business/request.js
@@ -1,4 +1,5 @@
-import { json } from 'react-router-dom';
+import { v4 as uuidv4 } from 'uuid';
+
 
 // UAT环境
 // const appKey = "k5hfiei5eevouvjohkapjaudpk2gakpaxha22fiy";
@@ -231,6 +232,14 @@ const yzs = {
         }).catch(error => {
             console.log(error);
         });
+    },
+    uniqueDeviceIdentifier: function () {
+        let udid = localStorage.getItem('uniqueDeviceIdentifier');
+        if (!udid) {
+            udid = uuidv4();
+            localStorage.setItem('uniqueDeviceIdentifier', udid);
+        }
+        return udid;
     }
 };
 
diff --git a/src/business/userSlice.js b/src/business/userSlice.js
index ec87eef..fd3b85a 100644
--- a/src/business/userSlice.js
+++ b/src/business/userSlice.js
@@ -3,7 +3,6 @@ import { createSlice } from '@reduxjs/toolkit'
 export const userSlice = createSlice({
     name: 'user',
     initialState: {
-        udid: "",    // web端使用ip地址作为udid
         flushToken: "",
         accessToken: "",
         passportId: 0,
@@ -17,9 +16,6 @@ export const userSlice = createSlice({
         verificationCode: "",
     },
     reducers: {
-        setUdid: (state, action) => {
-            state.udid = action.payload;
-        },
         setFlushToken: (state, token) => {
             state.flushToken = token.payload;
         },
@@ -48,6 +44,6 @@ export const userSlice = createSlice({
 })
 
 // Action creators are generated for each case reducer function
-export const { setUdid, setFlushToken, setAccessToken, setUserInfo, setSelectInfo, setAccount, setPassword, setVerificationCode } = userSlice.actions
+export const { setFlushToken, setAccessToken, setUserInfo, setSelectInfo, setAccount, setPassword, setVerificationCode } = userSlice.actions
 
 export default userSlice.reducer
\ No newline at end of file
diff --git a/src/components/DynamicCodeForm.js b/src/components/DynamicCodeForm.js
index c748c14..5d996dd 100644
--- a/src/components/DynamicCodeForm.js
+++ b/src/components/DynamicCodeForm.js
@@ -49,6 +49,7 @@ export default function ({ udid }) {
     >
         <TextField
             name="username"
+            autoComplete="username"
             label="请输入手机号码"
             variant="outlined"
             value={account}
@@ -70,6 +71,7 @@ export default function ({ udid }) {
             name="password"
             label="请输入验证码"
             type="password"
+            autoComplete="current-password"
             variant="outlined"
             value={verificationCode}
             onChange={handleInputChange}
diff --git a/src/components/PasswordForm.js b/src/components/PasswordForm.js
index f1bd51f..67dba28 100644
--- a/src/components/PasswordForm.js
+++ b/src/components/PasswordForm.js
@@ -23,6 +23,7 @@ export default function () {
     >
         <TextField
             name="username"
+            autoComplete="username"
             label="请输入手机号码"
             variant="outlined"
             value={account}
@@ -43,6 +44,7 @@ export default function () {
             name="password"
             label="请输入密码"
             type="password"
+            autoComplete="current-password"
             variant="outlined"
             value={password}
             onChange={handleInputChange}