修改图

src/pages/index/components/pests-chart.vue

@@ -230,9 +230,15 @@ export default {
           seriesData.push(resData[key])
         })
         const max = Math.max(...seriesData)
+
+        if (max > 5) {
           let maxN = Math.ceil(max / 5) * 5
           maxN = maxN === 0 ? 5 : maxN
           this.opts.yAxis.data[0].max = maxN
+        } else {
+          this.opts.yAxis.splitNumber = max
+        }
+
         let res = {
           categories: xAxis,
           series: [