// 按需引入 二选一
import * as echarts from 'echarts/core';
import {LineChart, BarChart} from 'echarts/charts';
import {TitleComponent,TooltipComponent,GridComponent, DatasetComponent, TransformComponent, LegendComponent } from 'echarts/components';
// 标签自动布局，全局过渡动画等特性
import {LabelLayout,UniversalTransition} from 'echarts/features';
// 引入 Canvas 渲染器，注意引入 CanvasRenderer 是必须的一步
import {CanvasRenderer} from 'echarts/renderers';