实现海拔高度数据的更新

src/render/components/WaterLevel.vue

@@ -29,13 +29,15 @@ const option = reactive({
     },
     label: {
       formatter: function({ value }) {
-        return value
+        return parseInt(value)
       }
     },
     data: [60, 0.5, 0.4, 0.3]
   }]
 })
 
-const update = console.log
+const update = (alt: number) => {
+  option.series[0].data[0] = alt
+}
 defineExpose({ update })
 </script>