From b09f0f1d9d92cc941e1bcf42c4b58a59e434d872 Mon Sep 17 00:00:00 2001
From: hjm <63528605@qq.com>
Date: Tue, 15 Oct 2019 17:32:01 +0800
Subject: [PATCH] =?UTF-8?q?=E9=82=80=E8=AF=B7=E7=A0=81?=
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---
 .../src/modules/courses/members/studentsList.js | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/public/react/src/modules/courses/members/studentsList.js b/public/react/src/modules/courses/members/studentsList.js
index ffdb9ed59..a63509c59 100644
--- a/public/react/src/modules/courses/members/studentsList.js
+++ b/public/react/src/modules/courses/members/studentsList.js
@@ -320,6 +320,9 @@ class studentsList extends Component{
     isAdmin && on('updateNavSuccess', this.updateNavSuccess)
   }
   componentWillUnmount() {
+    if (this.clipboard) {
+      this.clipboard.destroy()
+    }
     const isAdmin = this.props.isAdmin()
     if (isAdmin) {
       off('addStudentSuccess', this.addStudentSuccessListener)
@@ -420,12 +423,14 @@ class studentsList extends Component{
           invite_code: result.data.invite_code,
            isSpin:false
         }, () => {
-          if (!this.clipboard) {
-            const clipboard = new ClipboardJS('.copybtn');
-            clipboard.on('success', (e) => {
-              this.props.showNotification('复制成功')
-            });
-            this.clipboard = clipboard
+          if (course_group_id) {
+            if (!this.clipboard) {
+              const clipboard = new ClipboardJS('.copybtn');
+              clipboard.on('success', (e) => {
+                this.props.showNotification('复制成功')
+              });
+              this.clipboard = clipboard
+            }
           }
         })
       }