update

src/components/pages/addCourse.vue

@@ -4511,28 +4511,23 @@ export default {
             if (chapindex < _unitIndex) {
               this.isDelete = 2;
               this.unitIndex--;
-            }else {
+            } else if (
+              _unitJson2[this.unitIndex].chapterInfo[0].chapterid !=
+              _unitJson[this.unitIndex].chapterInfo[0].chapterid
+            ) {
               this.isDelete = 2;
-              this.unitIndex++;
+              for (let n = 0; n < _unitJson.length; n++) {
+                if (
+                  _unitJson2[this.unitIndex].chapterInfo[0].chapterid ==
+                  _unitJson[n].chapterInfo[0].chapterid
+                ) {
+                  this.unitIndex = n;
+                  _unitJson[n] = _unitJson2[this.unitIndex];
+                  break;
+                }
+              }
             }
-
-            // else if (
-            //   _unitJson2[this.unitIndex].chapterInfo[0].chapterid !=
-            //   _unitJson[this.unitIndex].chapterInfo[0].chapterid
-            // ) {
-            //   this.isDelete = 2;
-            //   for (let n = 0; n < _unitJson.length; n++) {
-            //     if (
-            //       _unitJson2[this.unitIndex].chapterInfo[0].chapterid ==
-            //       _unitJson[n].chapterInfo[0].chapterid
-            //     ) {
-            //       this.unitIndex = n;
-            //       _unitJson[n] = _unitJson2[this.unitIndex];
-            //       break;
-            //     }
-            //   }
-            // }
-          } else if(index != 2) {
+          } else if (index != 2) {
             _unitJson[this.unitIndex] = _unitJson2[this.unitIndex];
           }
           if (index == 1) {