优化选择逻辑

src/renderer/components/material/AasideList.vue

@@ -90,7 +90,7 @@ export default {
         isADown: false,
         aDownTimeout: null,
       },
-      lastSelectIndex: -1,
+      lastSelectIndex: 0,
     }
   },
   created() {
@@ -193,6 +193,7 @@ export default {
           this.lastSelectIndex = clickIndex
         }
       } else if (this.keyEvent.isModDown) {
+        this.lastSelectIndex = clickIndex
         let item = this.list[clickIndex]
         let index = this.selectdList.indexOf(item)
         if (index < 0) {

src/renderer/components/material/SongList.vue

@@ -161,7 +161,7 @@ export default {
         isShiftDown: false,
         isModDown: false,
       },
-      lastSelectIndex: -1,
+      lastSelectIndex: 0,
       listMenu: {
         isShowItemMenu: false,
         itemMenuControl: {
@@ -261,6 +261,7 @@ export default {
           this.lastSelectIndex = clickIndex
         }
       } else if (this.keyEvent.isModDown) {
+        this.lastSelectIndex = clickIndex
         let item = this.list[clickIndex]
         let index = this.selectdList.indexOf(item)
         if (index < 0) {