引入echarts组件

src/components/echarts/EchartsBar.vue

@@ -12,6 +12,8 @@ require('echarts/lib/chart/bar');
 require('echarts/lib/component/tooltip');
 require('echarts/lib/component/title');
 import { LegendComponent } from 'echarts/components';
+import { GridComponent } from 'echarts/components';
+echarts.use([GridComponent]);
 echarts.use([LegendComponent]);
 export default {
   props: {