互联网-社管一张图-框选，框选：无数据的样式修改

src/views/gis/layout/tools/select-chart.vue

@@ -44,6 +44,16 @@ export default defineComponent({
     const initChart = () => {
       const chart = echarts.init(ref_chart.value);
       const option = {
+        title: {
+          show: props.data.length === 0,
+          text: '暂无数据',
+          left: 'center',
+          top: '50%',
+          textStyle: {
+            color: '#4C4C4C',
+            fontWeight: 'normal'
+          }
+        },
         tooltip: {
           trigger: 'item'
         },