src/views/spectrum/statisticalAnalysis/wqMultipleSites/sitesanalysisResult/widget.vue

@@ -184,6 +184,17 @@ export default {
           right: 25,
           containLabel: true
         },
+        dataZoom: [
+          {
+            type: 'inside',
+            start: 0
+            // end: 20
+          },
+          {
+            start: 0
+            // end: 20
+          }
+        ],
         xAxis: {
           type: 'category',
           boundaryGap: domId == 'chart1' ? false : true,