先查有数据的日期，再查没数据的日期，饼图数据没清空

src/views/abnormalAlarm/analysisMonitor/alarmAnalysis/index.vue

@@ -41,6 +41,7 @@ export default {
       pieData: [],
       pieColors: ['#00bcd4', '#14b2a3', '#97b94b', '#47b55d'],
       pieTotal: 0,
+      sourceChart: null,
     }
   },
   mounted() {
@@ -113,6 +114,8 @@ export default {
               this.pieData = res.result.pieData
               this.pieTotal = res.result.pieTotal
               this.drawRightChart()
+            } else {
+              this.sourceChart.clear()
             }
           } else {
             this.$message.warning('This operation fails. Contact your system administrator')
@@ -247,7 +250,7 @@ export default {
       })
     },
     drawRightChart() {
-      let myChart = echarts.init(document.getElementById('chartRight'))
+      this.sourceChart = echarts.init(document.getElementById('chartRight'))
       let options = {
         tooltip: {
           trigger: 'item',
@@ -308,9 +311,9 @@ export default {
           },
         ],
       }
-      myChart.setOption(options)
+      this.sourceChart.setOption(options)
       window.addEventListener('resize', function () {
-        myChart.resize()
+        this.sourceChart.resize()
       })
     },
   },