bcm总览接口参数更新，电量指标没有返回数据时图表显示问题

src/views/ems/dzjk/tjbb/gltj/Dlzb.vue

@@ -81,6 +81,7 @@ export default {
         xAxis: { type: 'category' },
         yAxis: [{
           type: 'value',
+          name:'充电量/放电量kWh',
           axisLine: {
             lineStyle:{
               color: '#333333',
@@ -89,6 +90,7 @@ export default {
           }
         },{
           type: 'value',
+          name:'效率%',
           axisLine: {
             lineStyle:{
               color: '#333333',
@@ -96,7 +98,7 @@ export default {
             onZero:false
           }
         }],
-        grid:{top:30},
+        grid:{top:40},
         dataset:{
           source
         },
@@ -123,7 +125,7 @@ export default {
       const startDate=formatDate(start),endDate = formatDate(end)
       getElectricData({siteId:this.siteId,startDate,endDate}).then(response => {
         const {totalChargedCap='',totalDisChargedCap='',efficiency='',sevenDayDisChargeStats=[]}=response?.data || {}
-        this.setOption(sevenDayDisChargeStats)
+        this.setOption(sevenDayDisChargeStats || [])
         this.totalChargedCap=totalChargedCap
         this.totalDisChargedCap=totalDisChargedCap
         this.efficiency=efficiency