update line chart component

src/components/Charts/ELine.vue

@@ -45,6 +45,10 @@ export default {
       default: () => {
         return {}
       }
+    },
+    format: {
+      type: String,
+      default: 'HH:mm:ss'
     }
   },
   data() {
@@ -72,10 +76,14 @@ export default {
       const xAxis = []
       const series = []
       data.forEach(v => {
-        xAxis.push(moment(v.time).format('HH:mm:ss'))
+        xAxis.push(moment(v.time).format(this.format))
         series.push(v.value)
       })
       this.chart.setOption({
+        title: {
+          text: `${this.title}监控图表`,
+          subtext: `单位为: ${this.description}`
+        },
         xAxis: {
           data: xAxis
         },