diff --git a/chapter2/mysite/myapp/static/scripts/trend.js b/chapter2/mysite/myapp/static/scripts/trend.js
index 2c75b4d..f47bc75 100755
--- a/chapter2/mysite/myapp/static/scripts/trend.js
+++ b/chapter2/mysite/myapp/static/scripts/trend.js
@@ -147,6 +147,14 @@ $(function(){
 
    if (document.getElementById('lineChart1')) {
     var lineChart1 = echarts.init(document.getElementById('lineChart1'));
+    var lineChart1_names = [];
+    var lineChart1_datas = [];
+    for(var key in last_month_sell){
+      lineChart1_names.push(key);
+      lineChart1_datas.push(last_month_sell[key]);
+    }
+
+
    if(lineChart1){
     lineChart1.setOption({
      title: {
@@ -193,7 +201,7 @@ $(function(){
          xAxis: [
              {
                  type: 'category',
-                 data : symptomName,
+                 data : lineChart1_names,
                  boundaryGap : false,
                  axisLine:{
                      lineStyle:{
@@ -221,7 +229,7 @@ $(function(){
              type:'line',
              smooth:true,
              itemStyle: {normal: {areaStyle: {type: 'default'}}},
-             data:[120, 132, 101, 134, 90, 230, 210,120, 132, 101, 134, 90]
+             data:lineChart1_datas,
          },
      ]