diff --git a/frontend/admin/src/components/problem/testCaseMgnt.vue b/frontend/admin/src/components/problem/testCaseMgnt.vue
index 2e666fb..dcaf74b 100644
--- a/frontend/admin/src/components/problem/testCaseMgnt.vue
+++ b/frontend/admin/src/components/problem/testCaseMgnt.vue
@@ -35,8 +35,7 @@
             </tr>
         </table>
         <div class="form-group">
-            <uploader uploader-id="testCaseUploader"
-                      upload-path="/"
+            <uploader upload-path="/"
                       :accept="{title: 'testcase zip', extensions: 'zip', mimeTypes: 'application/zip'}"
                       :upload-success="uploadSuccess"
                       :upload-error="uploadError"
diff --git a/frontend/admin/src/components/utils/simditor.vue b/frontend/admin/src/components/utils/simditor.vue
index eabf030..4ddc4ae 100644
--- a/frontend/admin/src/components/utils/simditor.vue
+++ b/frontend/admin/src/components/utils/simditor.vue
@@ -1,5 +1,5 @@
 <template>
-    <textarea id="{{ editorid }}"></textarea>
+    <textarea id="{{ editorId }}"></textarea>
 </template>
 <script>
     import Simditor from 'simditor'
@@ -8,12 +8,8 @@
     export default{
         data() {
             return {
-                editor: {}
-            }
-        },
-        props: {
-            editorid: {
-                required: true
+                editor: {},
+                editorId: Math.random().toString(36).substr(2)
             }
         },
         methods: {
@@ -27,7 +23,7 @@
         attached() {
             var self = this;
             self.editor = new Simditor({
-                textarea: document.getElementById(self.editorid),
+                textarea: document.getElementById(self.editorId),
                 upload: {url: "/", fileKey: "file"},
                 toolbar: ['bold', 'italic', 'underline', 'color', 'image', 'ol', 'ul', 'markdown']
             });
diff --git a/frontend/admin/src/components/utils/uploader.vue b/frontend/admin/src/components/utils/uploader.vue
index ad8443b..d533379 100644
--- a/frontend/admin/src/components/utils/uploader.vue
+++ b/frontend/admin/src/components/utils/uploader.vue
@@ -12,10 +12,12 @@
     import getCookie from "../../utils/cookie"
 
     export default ({
+        data() {
+            return {
+                uploaderId: Math.random().toString(36).substr(2)
+            }
+        },
         props: {
-            uploaderId: {
-                required: true,
-            },
             uploadPath: {
                 required: true,
             },