npm install echarts -S

    npm install -g cnpm --registry=https://registry.npm.taobao.org //安装cnpm

    cnpm install echarts -S

// 引入echarts
import echarts from 'echarts'

Vue.prototype.$echarts = echarts

//template
   <div id="myChart" :style="{height: '400px'}"></div>
//js
   export default {
     data(){
      return{
          option :{
                       title : {
         //                  text: '某站点用户访问来源',
         //                  subtext: '纯属虚构',
                           x:'center'
                       },
                       tooltip : {
                           trigger: 'item',
                           formatter: "{a} <br/>{b} : {c} ({d}%)"
                       },
                       legend: {
                           orient: 'vertical',
                           left: 'right',
                           data: ['直接访问','邮件营销','联盟广告','视频广告','搜索引擎']
                       },
                       series : [
                           {
                               name: '',
                               type: 'pie',
                               radius : '55%',
                               center: ['50%', '60%'],
                               data:[
                                   {value:335, name:'直接访问'},
                                   {value:310, name:'邮件营销'},
                                   {value:234, name:'联盟广告'},
                                   {value:135, name:'视频广告'},
                                   {value:1548, name:'搜索引擎'}
                               ],
                               itemStyle: {
                                   emphasis: {
                                       shadowBlur: 10,
                                       shadowOffsetX: 0,
                                       shadowColor: 'rgba(0, 0, 0, 0.5)'
                                   }
                               }
                           }
                       ]
                   },
      }
     },
     mounted(){
           this.drawLine()
     },
     methods:{
        drawLine(){
                   // 基于准备好的dom，初始化echarts实例
                   let myChart = this.$echarts.init(document.getElementById('myChart'))
                   document.getElementById('myChart').setAttribute('_echarts_instance_', '')
                   // 绘制图表
                   myChart.setOption(this.option)
                   }
     }

   }