diff --git a/src/views/portal/course/Index.vue b/src/views/portal/course/Index.vue
index 30526a20..9879b032 100644
--- a/src/views/portal/course/Index.vue
+++ b/src/views/portal/course/Index.vue
@@ -561,11 +561,11 @@ export default {
                 //教师转化
                 if(item.teacher){
                    let dotIdx=item.teacher.indexOf(',');
-                   if(item.teacher.indexOf(',')){
-                     item.teacher=item.teacher.substring(0,dotIdx);
+                   if(dotIdx>0){
+                      item.teacher=item.teacher.substring(0,dotIdx);
                    }
                 }
-                
+
                 //转化标红显示
                 item.title=item.name;
                 if(that.course.keyword){