diff --git a/src/assets/js/charts.js b/src/assets/js/charts.js
index 0fe55af..90917ab 100644
--- a/src/assets/js/charts.js
+++ b/src/assets/js/charts.js
@@ -172,6 +172,7 @@ export function realTimeLine(id, data) {
 
     ]
     var list = []
+    var selList={}
     var dataList = []
     data.forEach((el, index) => {
         Xdata.push(el.time)
@@ -216,6 +217,7 @@ export function realTimeLine(id, data) {
                 },
             },
         })
+        selList[el.name]=(index==0?true:false)
     })
     var option = {
         tooltip: {
@@ -233,6 +235,7 @@ export function realTimeLine(id, data) {
             itemHeight: 10,
             type: 'scroll', // 启用翻页
             data: list,
+            selected: selList,
             right: "center",
             top:10,
             itemGap: 10,