feat: 增加图表

src/components/login-data/area-chart.vue

@@ -4,7 +4,7 @@
  * @Author: 无尘
  * @Date: 2020-07-02 16:48:49
  * @LastEditors: 无尘
- * @LastEditTime: 2020-07-02 17:19:21
+ * @LastEditTime: 2020-07-02 17:22:44
 -->
 <!--
   <area-chart :charData="charData" id="area-chart"></area-chart>
@@ -63,7 +63,8 @@ export default {
       this.chart.source(this.charData);
       this.chart.scale({
         value: {
-          min: 0
+          min: 0,
+          nice: true
         },
         year: {
           range: [0, 1]