fix: NEZ-3387 dashboard 图表数据导出 csv 失败

nezha-fronted/src/components/chart/chartMixin.js

@@ -546,8 +546,9 @@ export default {
       const data = this.series
       let csv = '"time","legend","value"\n'
       data.forEach((item, index) => {
-        item.data.forEach(value => {
+        if (this.seriesData[index + 1]) {
-          let val = formatScientificNotation(value[1], this.$lodash.get(chartInfo, 'param.decimals', 2))
+          this.seriesData[index].forEach((value, timeIndex) => {
+            let val = formatScientificNotation(value, this.$lodash.get(chartInfo, 'param.decimals', 2))
             let unit = ''
             if (item.yAxisIndex) {
               unit = chartDataFormat.getUnit(this.$lodash.get(chartInfo, 'param.rightYAxis.unit', 2))
@@ -562,8 +563,9 @@ export default {
             } catch (e) {
               console.log(e)
             }
-          csv += `"${this.momentTz(value[0] * 1000)}","${legend}","${val}"\n`
+            csv += `"${this.momentTz(this.seriesData[0][timeIndex] * 1000)}","${legend}","${val}"\n`
           })
+        }
       })
       return csv
     },
@@ -583,7 +585,7 @@ export default {
           break
         case 'bar' :
           legend = 'alias'
-          keyByData = 'series[0].data'
+          keyByData = 'barData'
           break
         case 'pie' :
           legend = 'alias'
@@ -627,7 +629,7 @@ export default {
       }
       this.$lodash.get(this, keyByData, []).forEach(item => {
         let val = item.showValue
-        let legends = this.yasuo(item[legend])
+        let legends = this.yasuo(item[legend] || item.alias)
         try {
           val = val.trim()
           legends = legends.trim()