feat: 修复大转盘问题

components/Lottery/Instant/MiniMain.vue

@@ -222,7 +222,8 @@ export default {
         name: '谢谢参与' // 中奖等级
       }, // 中奖信息
       randomType: Math.floor(Math.random() * (2 - 1 + 1)) + 1, // 部分抽奖类型随机进1或2
-      isShowBanner: true
+      isShowBanner: true,
+      formattedPrizeList: []
     }
   },
   computed: {
@@ -235,13 +236,8 @@ export default {
     prizeList() {
       return this.lotteryInfo.prizeConfigs
     },
-    formattedPrizeList() {
-      const prizeLen = this.lotteryInfo?.prizeConfigs?.length || 0
-      if (prizeLen >= 6 && prizeLen % 2 === 0) {
-        const freePrizes = new Array(2).fill({ id: 0, name: '谢谢参与' })
-        return [...this.lotteryInfo.prizeConfigs, ...freePrizes]
-      }
-      return this.lotteryInfo.prizeConfigs
+    prizeLen() {
+      return this.prizeList.length
     },
     isNotStart() {
       // 抽奖不在活动日期内
@@ -258,7 +254,25 @@ export default {
       return ''
     }
   },
+  watch: {
+    prizeLen(nVal, oVal) {
+      if (nVal === oVal) {
+        return
+      }
+      if (this.nVal >= 6 && this.nVal % 2 === 0) {
+        const freePrizes = new Array(2).fill({ id: 0, name: '谢谢参与' })
+        this.formattedPrizeList = [...this.lotteryInfo.prizeConfigs, ...freePrizes]
+      }
+      this.formattedPrizeList = this.lotteryInfo.prizeConfigs
+    }
+  },
   mounted() {
+    if (this.prizeLen >= 6 && this.prizeLen % 2 === 0) {
+      const freePrizes = new Array(2).fill({ id: 0, name: '谢谢参与' })
+      this.formattedPrizeList = [...this.lotteryInfo.prizeConfigs, ...freePrizes]
+    }else {
+      this.formattedPrizeList = this.lotteryInfo.prizeConfigs
+    }
     Bus.$on('updateMain', data => {
       for (const [key, value] of Object.entries(data)) {
         if (key === 'func') {