fix:屏蔽mac客户端下载

src/modules/course-manage/components/LiveCourseOpt.jsx

 /*
  * @Author: 吴文洁 
  * @Date: 2020-07-14 15:42:24 
- * @Last Modified by: 吴文洁
- * @Last Modified time: 2020-07-23 14:35:28
+ * @Last Modified by: chenshu
+ * @Last Modified time: 2021-04-12 14:00:09
  * @Description: 大班直播、互动班课的操作区
  */
 
@@ -15,7 +15,11 @@ import User from '@/common/js/user'
 class LiveCourseOpt extends React.Component {
   constructor(props) {
     super(props);
+    this.state = {
+      isMac: /macintosh|mac os x/i.test(navigator.userAgent),
+    }
   }
+
   handleCreateLiveCouese = ()=>{
     window.RCHistory.push({
       pathname: '/create-live-course?type=add',
@@ -23,12 +27,12 @@ class LiveCourseOpt extends React.Component {
   }
   // 下载直播客户端
   handleDownloadClient = () => {
-    const isMac = /macintosh|mac os x/i.test(navigator.userAgent);
+    const { isMac } = this.state;
     // 判断用户系统
     let platform;
     if(!isMac){
       platform = 1
-    }else{
+    } else {
       platform = 4
     }
     BaseService
@@ -49,7 +53,7 @@ class LiveCourseOpt extends React.Component {
           { userRole !== "CloudLecturer" &&
             <Button type="primary" onClick={this.handleCreateLiveCouese}>新建直播课</Button>
           }
-          <Button onClick={this.handleDownloadClient}>下载直播客户端</Button>
+          {!this.state.isMac && <Button onClick={this.handleDownloadClient}>下载直播客户端</Button>}
         </div>
       </div>
     )