diff --git a/pages/study/courseStudy.vue b/pages/study/courseStudy.vue
index e4d0050..97a20ac 100644
--- a/pages/study/courseStudy.vue
+++ b/pages/study/courseStudy.vue
@@ -711,10 +711,14 @@
 						//this.curSection=this.sectionList[0];
 					}else{
 						let treelist=this.catalogTree;
-						this.curSection=treelist[0].sec;
-						this.curContent=treelist[0].children[0];
-						// this.curContent=this.contentList[0];
-						// this.curSection=this.sectionList[0];
+						//console.log(treelist,'treelist')
+						if(treelist.length>0){
+							this.curSection=treelist[0].sec;
+							this.curContent=treelist[0].children[0];
+						}else{
+							this.curContent=this.contentList[0];
+							this.curSection=this.sectionList[0];
+						}
 						//要不要在这里处理？
 						// if(this.curContent.contentType==10 || this.curContent.contentType==20){
 						// 	if(this.contentList[0].content.startsWith('\{')){