route query变化清空option

src/views/hzyb/chart/Detail.vue

@@ -562,6 +562,7 @@ onBeforeRouteUpdate((nval)=>{
     console.log('路由改变',nval);
     ChartInfoId=nval.query.ChartInfoId;
     chartSource= Number(nval.query.chartSource);
+    chartData.value = {}
     dateType.value=null
     startDate.value=''
     endDate.value=''