优化UI

src/renderer/views/Download.vue

@@ -53,6 +53,7 @@ export default {
         isShiftDown: false,
         isModDown: false,
       },
+      lastSelectIndex: -1,
       listMenu: {
         isShowItemMenu: false,
         itemMenuControl: {
@@ -232,7 +233,7 @@ export default {
     handleSelectData(event, clickIndex) {
       if (this.keyEvent.isShiftDown) {
         if (this.selectdData.length) {
-          let lastSelectIndex = this.showList.indexOf(this.selectdData[this.selectdData.length - 1])
+          let lastSelectIndex = this.lastSelectIndex
           this.removeAllSelect()
           if (lastSelectIndex != clickIndex) {
             let isNeedReverse = false
@@ -253,6 +254,7 @@ export default {
         } else {
           event.currentTarget.classList.add('active')
           this.selectdData.push(this.showList[clickIndex])
+          this.lastSelectIndex = clickIndex
         }
       } else if (this.keyEvent.isModDown) {
         let item = this.showList[clickIndex]