vue2怎么用echarts

<code>npm install vue echarts --save</code>

<code class="js">import Vue from 'vue';
import ECharts from 'vue-echarts/components/ECharts';

Vue.component('Chart', ECharts);</code>

<code class="html"><template>
  <div>
    <chart :options="options"></chart>
  </div>
</template></code>

<code class="js">data() {
  return {
    options: {
      title: {
        text: '示例图表'
      },
      series: [{
        type: 'pie',
        data: [{
          value: 5,
          name: '选项 1'
        }, {
          value: 10,
          name: '选项 2'
        }]
      }]
    }
  }
}</code>

<code class="js">methods: {
  updateChart() {
    this.options = {...};  // 更新图表选项
  }
}</code>

<code class="html"><template>
  <div>
    <chart @chart-click="handleClick"></chart>
  </div>
</template></code>

<code class="js">methods: {
  handleClick(params) {
    console.log(params);  // 包含点击事件信息
  }
}</code>