修改测试问题

src/components/echarts/MyEchart.vue

@@ -13,6 +13,7 @@ import 'echarts-liquidfill'
 import 'echarts/lib/component/dataZoom'
 import { color, gradeColor3 } from './color'
 import { useConfig } from '@/stores/config'
+import { buildExportBaseName, formatExportDateTime } from '@/utils/echartMethod'
 // import { nextTick } from 'process'
 
 const emit = defineEmits(['chartClick'])
@@ -71,7 +72,9 @@ const initChart = () => {
             feature: {
                 saveAsImage: {
                     title: '下载图片',
-                    name: props.options?.title?.text || '图表'
+                    name: props.options?.exportFileName
+                        ? buildExportBaseName(props.options.exportFileName)
+                        : ((props.options?.title?.text || '图表') + '_' + formatExportDateTime())
                 },
                 ...(props.options?.toolbox?.featureProps || null)
             },
@@ -93,7 +96,7 @@ const initChart = () => {
             ...(props.options?.legend || null)
         },
         grid: {
-            top: props.options?.title?.text ? '50px' : '25px', 
+            top: props.options?.title?.text ? '50px' : '25px',
             left: '30px',
             right: '70px',
             bottom: props.options?.options?.dataZoom === null ? '10px' : '40px',