diff --git a/src/app/navigation/navigation.component.html b/src/app/navigation/navigation.component.html
index 7fa860f..7dfcd17 100644
--- a/src/app/navigation/navigation.component.html
+++ b/src/app/navigation/navigation.component.html
@@ -19,9 +19,10 @@
                     (mouseenter)="liEnter(item)" 
                     (mouseleave)="liLeave(item)"
                     >{{item.name}}
-                    <h4 class="editli" [ngClass]="{'editlihover': item.id === hoverDataBank}" *ngIf="islogin.isLogin">
-                        <span><mat-icon class="editicon" (click)="editDataBankName(item)">edit</mat-icon></span>
-                        <span><mat-icon class="deleteicon" (click)="deleteDataBank(item)" style="color: #e02626;">delete</mat-icon></span>
+                    <h4 class="editli" [ngClass]="{'editlihover': item.id === hoverDataBank}" 
+                    *ngIf="islogin.isLogin && item.name != '法律法规' && item.name != '消防知识' && item.name != '装备车辆' && item.name != '设备设施'">
+                        <span><mat-icon class="editicon" (click)="editDataBankName($event,item)">edit</mat-icon></span>
+                        <span><mat-icon class="deleteicon" (click)="deleteDataBank($event,item)" style="color: #e02626;">delete</mat-icon></span>
                     </h4>    
                 </li>
             </ul>
diff --git a/src/app/navigation/navigation.component.ts b/src/app/navigation/navigation.component.ts
index 2acbb3c..239d666 100644
--- a/src/app/navigation/navigation.component.ts
+++ b/src/app/navigation/navigation.component.ts
@@ -106,7 +106,8 @@ export class NavigationComponent implements OnInit {
     this.hoverDataBank = ""
   }
   //修改资料库名称
-  editDataBankName(item){
+  editDataBankName(e,item){
+    e.stopPropagation()
     const dialogRef = this.dialog.open(EditDataBankName, {//调用open方法打开对话框并且携带参数过去
       width: '260px',
       data: {name:item.name}
@@ -135,7 +136,8 @@ export class NavigationComponent implements OnInit {
     );
   }
   //删除资料库
-  deleteDataBank(item){
+  deleteDataBank(e,item){
+    e.stopPropagation()
     var r = confirm(`您确定要删除 ${item.name} 资料库吗？`);
     if (r == true) {
       this.http.delete(`/api/DataBanks/${item.id}`).subscribe(data => {
@@ -170,8 +172,16 @@ export class AddDataBank {
   }
 
   onSubmit(value){
-    this.dialogRef.close(value);
+    if ( value.name.includes('/') ) {
+      let config = new MatSnackBarConfig();
+      config.verticalPosition = 'top';
+      config.duration = 3000
+      this.snackBar.open('名称不允许有特殊字符','确定',config);
+    } else {
+      this.dialogRef.close(value);
+    }
   }
+
 }
 
 //更改资料库名称
@@ -191,6 +201,14 @@ export class EditDataBankName {
   }
 
   onSubmit(value){
-    this.dialogRef.close(value);
+    if ( value.name.includes('/') ) {
+      let config = new MatSnackBarConfig();
+      config.verticalPosition = 'top';
+      config.duration = 3000
+      this.snackBar.open('名称不允许有特殊字符','确定',config);
+    } else {
+      this.dialogRef.close(value);
+    }
   }
+
 }
\ No newline at end of file
diff --git a/src/app/ui/all-file/all-file.component.html b/src/app/ui/all-file/all-file.component.html
index add2cfc..026fd9e 100644
--- a/src/app/ui/all-file/all-file.component.html
+++ b/src/app/ui/all-file/all-file.component.html
@@ -56,7 +56,7 @@
 </div>
 <div class="titlebox">
     <div class="titleleft">
-        <span class="goBack" (click)='backToTop()'>返回一级目录</span>
+        <span class="goBack" (click)='backToTop()' *ngIf="selectedDataBank.includes('/')">返回一级目录</span>
         <span style="margin: 0 3px;color: #c5d8f3;">|</span>
         <span class="allFile">全部文件</span>
         <span style="margin: 0 3px;color: #c5d8f3;">→</span>
diff --git a/src/app/ui/all-file/all-file.component.ts b/src/app/ui/all-file/all-file.component.ts
index 420ff3d..4f941e9 100644
--- a/src/app/ui/all-file/all-file.component.ts
+++ b/src/app/ui/all-file/all-file.component.ts
@@ -26,7 +26,7 @@ export class AllFileComponent {
 
   
 
-  selectedDataBank:string //当前需要显示的资料库
+  selectedDataBank:string = '' //当前需要显示的资料库
   fileNum:any = 0 //当前资料库文件数量
 
   selection = new SelectionModel(true, []);