bug修改

src/pages/system/marketingActivities/listOfLotteryActivities/edit.vue

         })
         return false
       }
-      if (this.postData.ImgUrl === '') {
+      if (this.postData.ActivityMainImg === '') {
         this.$message({
           type: 'error',
           message: '请先上传活动主图'

src/pages/system/marketingActivities/snapUpList/edit.vue

         })
         return false
       }
-      if (this.postData.ImgUrl === '') {
+      if (this.postData.ActivityMainImg === '') {
         this.$message({
           type: 'error',
           message: '请先上传活动主图'