diff --git a/package-lock.json b/package-lock.json
index d88c972..fab0c0e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15968,8 +15968,7 @@
             "ansi-regex": {
               "version": "2.1.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "aproba": {
               "version": "1.2.0",
@@ -16012,8 +16011,7 @@
             "code-point-at": {
               "version": "1.1.0",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "concat-map": {
               "version": "0.0.1",
@@ -16024,8 +16022,7 @@
             "console-control-strings": {
               "version": "1.1.0",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "core-util-is": {
               "version": "1.0.2",
@@ -16142,8 +16139,7 @@
             "inherits": {
               "version": "2.0.4",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "ini": {
               "version": "1.3.5",
@@ -16155,7 +16151,6 @@
               "version": "1.0.0",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -16185,7 +16180,6 @@
               "version": "2.9.0",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "safe-buffer": "^5.1.2",
                 "yallist": "^3.0.0"
@@ -16204,7 +16198,6 @@
               "version": "0.5.1",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -16307,7 +16300,6 @@
               "version": "1.4.0",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -16393,8 +16385,7 @@
             "safe-buffer": {
               "version": "5.1.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "safer-buffer": {
               "version": "2.1.2",
@@ -16430,7 +16421,6 @@
               "version": "1.0.2",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -16450,7 +16440,6 @@
               "version": "3.0.1",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "ansi-regex": "^2.0.0"
               }
@@ -16494,14 +16483,12 @@
             "wrappy": {
               "version": "1.0.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "yallist": {
               "version": "3.1.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             }
           }
         },
@@ -16939,8 +16926,7 @@
             "console-control-strings": {
               "version": "1.1.0",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "core-util-is": {
               "version": "1.0.2",
@@ -17057,8 +17043,7 @@
             "inherits": {
               "version": "2.0.4",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "ini": {
               "version": "1.3.5",
@@ -17100,7 +17085,6 @@
               "version": "2.9.0",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "safe-buffer": "^5.1.2",
                 "yallist": "^3.0.0"
@@ -17119,7 +17103,6 @@
               "version": "0.5.1",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -17222,7 +17205,6 @@
               "version": "1.4.0",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -17308,8 +17290,7 @@
             "safe-buffer": {
               "version": "5.1.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "safer-buffer": {
               "version": "2.1.2",
@@ -17345,7 +17326,6 @@
               "version": "1.0.2",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -17409,14 +17389,12 @@
             "wrappy": {
               "version": "1.0.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "yallist": {
               "version": "3.1.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             }
           }
         },
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index 6602cda..5664cce 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -1,6 +1,5 @@
 import { Component } from '@angular/core';
 import { HttpClient } from '@angular/common/http'
-import { Data } from './interface'
 import { Router,ActivatedRoute } from '@angular/router'
 import { IsLoginService } from './is-login.service' //引入服务
 import {CacheTokenService} from './http-interceptors/cache-token.service' //引入服务
@@ -14,7 +13,6 @@ import {CacheTokenService} from './http-interceptors/cache-token.service' //引
 })
 export class AppComponent {
 
-
   constructor(private http:HttpClient,private router:Router,public token:CacheTokenService,public isLogin:IsLoginService) { }
   
   ngOnInit(): void {
diff --git a/src/app/http-interceptors/cache-token.service.ts b/src/app/http-interceptors/cache-token.service.ts
index 29e5bfd..f5acaf9 100644
--- a/src/app/http-interceptors/cache-token.service.ts
+++ b/src/app/http-interceptors/cache-token.service.ts
@@ -29,7 +29,7 @@ export class CacheTokenService {
       } else { this.delete() }
     },18*60*1000)
   }
- 
+
   //删除定时器
   delete = ():void=> {
     window.clearInterval(this.timer)
diff --git a/src/app/navigation/navigation.component.html b/src/app/navigation/navigation.component.html
index 41b6b56..306e96f 100644
--- a/src/app/navigation/navigation.component.html
+++ b/src/app/navigation/navigation.component.html
@@ -1,30 +1,31 @@
 
 <mat-sidenav-container class="example-container" autosize [class.myapp-dark-theme]="darktheme">
-    <mat-sidenav #drawer class="example-sidenav" mode="side" opened="true" color="primary" style="overflow-x: hidden;">
-        <div class="biglogobox">
-            <img src="../../assets/images/logo.png" alt="logo">
-        </div>
-        <div class="navbox">
-            <ul class="teacher">
-                <li [routerLink]="['/home/createexam']" routerLinkActive="router-link-active" >创建考试</li>
-                <li [routerLink]="['/home/looktest']" routerLinkActive="router-link-active" >阅卷</li>
-                <li [routerLink]="['/home/statisticAnalysis']" routerLinkActive="router-link-active" >统计分析</li>
-            </ul>
-            <ul class="student">
-                <li [routerLink]="['/home/joinExam']" routerLinkActive="router-link-active" >参加考试</li>
-                <li [routerLink]="['/home/testRecords']" routerLinkActive="router-link-active" >考试记录</li>
-            </ul>
-        </div>
 
-       
+  <mat-sidenav #drawer class="example-sidenav" mode="side" opened="true" color="primary" style="overflow-x: hidden;">
+    <div class="biglogobox">
+        <img src="../../assets/images/logo.png" alt="logo">
+    </div>
+    <div class="navbox">
+        <ul class="teacher">
+            <li [routerLink]="['/home/createexam']" routerLinkActive="router-link-active" >创建考试</li>
+            <li [routerLink]="['/home/looktest']" routerLinkActive="router-link-active" >阅卷</li>
+            <li [routerLink]="['/home/statisticAnalysis']" routerLinkActive="router-link-active" >统计分析</li>
+        </ul>
+        <ul class="student">
+            <li [routerLink]="['/home/joinExam']" routerLinkActive="router-link-active" >参加考试</li>
+            <li [routerLink]="['/home/testRecords']" routerLinkActive="router-link-active" >考试记录</li>
+        </ul>
+    </div>
 
-        
-    </mat-sidenav>
+  </mat-sidenav>
 
-    <div class="example-sidenav-content">
-        <app-tabbar (toggleDarkTheme)="switchTheme($event)" (defaulttheme)="defaulttheme()" (redtheme)="redtheme()"></app-tabbar>
-        <router-outlet></router-outlet>
-        <!-- <app-all-file #child></app-all-file> -->
+  <div class="example-sidenav-content">
+    <div style="height: 64px; min-height: 64px;">
+      <app-tabbar (toggleDarkTheme)="switchTheme($event)" (defaulttheme)="defaulttheme()" (redtheme)="redtheme()"></app-tabbar>
+    </div>
+    <div style="flex: 1; overflow: hidden;">
+      <router-outlet></router-outlet>
     </div>
+  </div>
 
 </mat-sidenav-container>
diff --git a/src/app/navigation/navigation.component.scss b/src/app/navigation/navigation.component.scss
index 717c7ca..5c17aaa 100644
--- a/src/app/navigation/navigation.component.scss
+++ b/src/app/navigation/navigation.component.scss
@@ -175,6 +175,8 @@ mat-sidenav{
 .example-sidenav-content{
   height: 100%;
   overflow: hidden;
+  display: flex;
+  flex-direction: column;
 }
 
 //一级目录前图标
diff --git a/src/index.html b/src/index.html
index b6b8eee..1b14057 100644
--- a/src/index.html
+++ b/src/index.html
@@ -2,12 +2,11 @@
 <html lang="zh-CN">
 <head>
   <meta charset="utf-8">
-  <title>灭火救援指挥培训系统</title>
+  <title>消防救援单位信息考核系统</title>
   <base href="/">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <link rel="icon" type="image/x-icon" href="favicon.ico">
   <link href='/assets/icon/material-icons.css' rel="stylesheet">
-  <!-- <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"> -->
 </head>
 <body>
   <app-root></app-root>