diff --git a/app-dm/src/nav/nav.jsx b/app-dm/src/nav/nav.jsx
index e786b87..b967438 100755
--- a/app-dm/src/nav/nav.jsx
+++ b/app-dm/src/nav/nav.jsx
@@ -1,12 +1,12 @@
 import { Link } from 'react-router-dom';
 import './style.css';
 import React,{ useState } from 'react';
-import HomeIcon from '../pages/Home/img/主页.jpg';
-import Subject from "../pages/Home/img/题目.jpg";
-import Analyse from "../pages/Home/img/学习分析.jpg";
-import Set from '../pages/Home/img/设置.jpg';
+import HomeIcon from '../pages/Home/img/home.jpg';
+import Subject from "../pages/Home/img/temp.jpg";
+import Analyse from "../pages/Home/img/analyse.jpg";
+import Set from '../pages/Home/img/setting.jpg';
 import Logo from '../pages/Home/img/logo.jpg';
-import Computer from '../pages/Home/img/实训.jpg';
+import Computer from '../pages/Home/img/training.jpg';
 
 // 导航
 function HeaderNav() {
diff --git a/app-dm/src/nav/teacherIndex.jsx b/app-dm/src/nav/teacherIndex.jsx
index 555c164..3b679da 100755
--- a/app-dm/src/nav/teacherIndex.jsx
+++ b/app-dm/src/nav/teacherIndex.jsx
@@ -1,11 +1,11 @@
 import { Link } from 'react-router-dom'
 import './style.css'
 import React,{ useState } from 'react';
-import ClassManage from '../pages/Home/img/班级管理.jpg'
-import SubjectManage from "../pages/Home/img/考试管理.jpg"
-import Send from "../pages/Home/img/练习.jpg"
-import Set from '../pages/Home/img/设置.jpg'
-import Mark from '../pages/Home/img/批改.jpg'
+import ClassManage from '../pages/Home/img/classmanage.jpg'
+import SubjectManage from "../pages/Home/img/testmanage.jpg"
+import Send from "../pages/Home/img/test.jpg"
+import Set from '../pages/Home/img/setting.jpg'
+import Mark from '../pages/Home/img/correct.jpg'
 import Logo from '../pages/Home/img/logo.jpg'
 
 // 导航
diff --git a/app-dm/src/pages/Home/img/学习分析.jpg b/app-dm/src/pages/Home/img/analyse.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/学习分析.jpg
rename to app-dm/src/pages/Home/img/analyse.jpg
diff --git a/app-dm/src/pages/Home/img/班级管理.jpg b/app-dm/src/pages/Home/img/classmanage.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/班级管理.jpg
rename to app-dm/src/pages/Home/img/classmanage.jpg
diff --git a/app-dm/src/pages/Home/img/电脑.jpg b/app-dm/src/pages/Home/img/computer.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/电脑.jpg
rename to app-dm/src/pages/Home/img/computer.jpg
diff --git a/app-dm/src/pages/Home/img/批改.jpg b/app-dm/src/pages/Home/img/correct.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/批改.jpg
rename to app-dm/src/pages/Home/img/correct.jpg
diff --git a/app-dm/src/pages/Home/img/主页.jpg b/app-dm/src/pages/Home/img/home.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/主页.jpg
rename to app-dm/src/pages/Home/img/home.jpg
diff --git a/app-dm/src/pages/Home/img/练习.jpg b/app-dm/src/pages/Home/img/practise.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/练习.jpg
rename to app-dm/src/pages/Home/img/practise.jpg
diff --git a/app-dm/src/pages/Home/img/发布.jpg b/app-dm/src/pages/Home/img/send.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/发布.jpg
rename to app-dm/src/pages/Home/img/send.jpg
diff --git a/app-dm/src/pages/Home/img/设置.jpg b/app-dm/src/pages/Home/img/setting.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/设置.jpg
rename to app-dm/src/pages/Home/img/setting.jpg
diff --git a/app-dm/src/pages/Home/img/题目.jpg b/app-dm/src/pages/Home/img/temp.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/题目.jpg
rename to app-dm/src/pages/Home/img/temp.jpg
diff --git a/app-dm/src/pages/Home/img/考试管理.jpg b/app-dm/src/pages/Home/img/testmanage.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/考试管理.jpg
rename to app-dm/src/pages/Home/img/testmanage.jpg
diff --git a/app-dm/src/pages/Home/img/实训.jpg b/app-dm/src/pages/Home/img/training.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/Home/img/实训.jpg
rename to app-dm/src/pages/Home/img/training.jpg
diff --git a/app-dm/src/pages/Home/img/班级.jpg b/app-dm/src/pages/Home/img/班级.jpg
deleted file mode 100755
index 1e7dde0..0000000
Binary files a/app-dm/src/pages/Home/img/班级.jpg and /dev/null differ
diff --git a/app-dm/src/pages/ListPages/Analyse/AnalysePages.jsx b/app-dm/src/pages/ListPages/Analyse/AnalysePages.jsx
index 8ef2b4f..2ab1f01 100755
--- a/app-dm/src/pages/ListPages/Analyse/AnalysePages.jsx
+++ b/app-dm/src/pages/ListPages/Analyse/AnalysePages.jsx
@@ -1,4 +1,4 @@
-import Computer from '../../Home/img/电脑.jpg'
+import Computer from '../../Home/img/computer.jpg'
 import React,{ useState } from 'react';
 import '../Analyse/AnalysePages.css'
 import { Pie } from 'react-chartjs-2';
diff --git a/app-dm/src/pages/ListPages/Subject/Exam.jsx b/app-dm/src/pages/ListPages/Subject/Exam.jsx
index 27f198a..3b7673e 100755
--- a/app-dm/src/pages/ListPages/Subject/Exam.jsx
+++ b/app-dm/src/pages/ListPages/Subject/Exam.jsx
@@ -1,6 +1,3 @@
-// import { Link } from 'react-router-dom';
-// import React,{ useState } from 'react';
-// import {  createElement, useEffect } from 'react'
 import './Exam.css'
 import { useParams } from 'react-router';
 import axios from 'axios';
diff --git a/app-dm/src/pages/ListPages/Training/Operation1.jsx b/app-dm/src/pages/ListPages/Training/Operation1.jsx
index 897b80d..3e8dc17 100755
--- a/app-dm/src/pages/ListPages/Training/Operation1.jsx
+++ b/app-dm/src/pages/ListPages/Training/Operation1.jsx
@@ -3,7 +3,7 @@ import { Terminal } from "@xterm/xterm";
 import "@xterm/xterm/css/xterm.css"
 import  React,{ MouseEvent, useEffect, useRef, useState } from "react";
 import { Link } from 'react-router-dom';
-import arrow from '../img/箭头1.jpg'
+import arrow from '../img/arrow.jpg'
 import bottom from '../img/bottom.jpg'
 import top from '../img/top.jpg'
 
diff --git a/app-dm/src/pages/ListPages/Training/Operation2.jsx b/app-dm/src/pages/ListPages/Training/Operation2.jsx
index 12b5011..1b7855f 100755
--- a/app-dm/src/pages/ListPages/Training/Operation2.jsx
+++ b/app-dm/src/pages/ListPages/Training/Operation2.jsx
@@ -3,8 +3,8 @@ import { Terminal } from "@xterm/xterm";
 import "@xterm/xterm/css/xterm.css"
 import  React,{ MouseEvent, useEffect, useRef, useState } from "react";
 import { Link } from 'react-router-dom';
-import arrow from '../img/箭头1.jpg'
-import arrow1 from '../img/箭头左.jpg'
+import arrow from '../img/arrow.jpg'
+import arrow1 from '../img/left.jpg'
 import bottom from '../img/bottom.jpg'
 import top from '../img/top.jpg'
 
diff --git a/app-dm/src/pages/ListPages/img/箭头.jpg b/app-dm/src/pages/ListPages/img/arrow.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/ListPages/img/箭头.jpg
rename to app-dm/src/pages/ListPages/img/arrow.jpg
diff --git a/app-dm/src/pages/ListPages/img/箭头左.jpg b/app-dm/src/pages/ListPages/img/left.jpg
old mode 100755
new mode 100644
similarity index 100%
rename from app-dm/src/pages/ListPages/img/箭头左.jpg
rename to app-dm/src/pages/ListPages/img/left.jpg