<div id="myChartChina" :style="{width: '100%', height: '500px'}"></div>
 
 mounted() {
    this.drawLine();
  },
 drawLine(){
    // 基于准备好的dom，初始化echarts实例
    var myChartContainer = document.getElementById('myChartChina');    
    var resizeMyChartContainer = function(){
     myChartContainer.style.width=(document.body.offsetWidth/2)+'px'//页面一半的大小
    } 
     resizeMyChartContainer();
    var myChartChina = this.$echarts.init(myChartContainer); 

    function randomData() { 
        return Math.round(Math.random()*500); 
      } 
    // 绘制图表
    var optionMap = { 
       tooltip: {},
         legend: {
              orient: 'vertical',
              left: 'left',
              data:['']
            },   
         visualMap: {
              min: 0,
              max: 1500,
              left: '10%',
              top: 'bottom',
              text: ['高','低'],
              calculable : true,
              color:['#0b50b9','#c3e2f4']
            },  
         selectedMode: 'single',
         series : [             
              {
               name: '', 
               type: 'map',
               mapType: 'china',
               itemStyle: {
                  normal:{
                    borderColor: 'rgba(0, 0, 0, 0.2)'
                  },
                  emphasis:{
                    shadowOffsetX: 0,
                    shadowOffsetY: 0,
                    shadowBlur: 20,
                    borderWidth: 0,
                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                  }
                },
                showLegendSymbol: true,
                label: {
                  normal: {
                    show: true
                  },
                  emphasis: {
                    show: true
                  }
                },
                data:[        
                   {name: '北京',value: randomData() },
                   {name: '天津',value: randomData() },
                   {name: '上海',value: randomData() },
                   {name: '重庆',value: randomData() },
                   {name: '河北',value: randomData() },
                   {name: '河南',value: randomData() },
                   {name: '云南',value: randomData() },
                   {name: '辽宁',value: randomData() },
                   {name: '黑龙江',value: randomData() },
                   {name: '湖南',value: randomData() },
                   {name: '安徽',value: randomData() },
                   {name: '山东',value: randomData() },
                   {name: '新疆',value: randomData() },
                   {name: '江苏',value: randomData() },
                   {name: '浙江',value: randomData() },
                   {name: '江西',value: randomData() },
                   {name: '湖北',value: randomData() },
                   {name: '广西',value: randomData() },
                   {name: '甘肃',value: randomData() },
                   {name: '山西',value: randomData() },
                   {name: '内蒙古',value: randomData() },
                   {name: '陕西',value: randomData() },
                   {name: '吉林',value: randomData() },
                   {name: '福建',value: randomData() },
                   {name: '贵州',value: randomData() },
                   {name: '广东',value: randomData() },
                   {name: '青海',value: randomData() },
                   {name: '西藏',value: randomData() },
                   {name: '四川',value: randomData() },
                   {name: '宁夏',value: randomData() },
                   {name: '海南',value: randomData() },
                   {name: '台湾',value: randomData() },
                   {name: '香港',value: randomData() },
                   {name: '澳门',value: randomData() }
                ]
              }
            ]
        }
   
    myChartChina.setOption(optionMap);
    window.onresize=function(){
      resizeMyChartContainer();
      myChartChina.resize();
    }
   }

// 引入echarts
import echarts from 'echarts'
Vue.prototype.$echarts = echarts

// 还要特别引入china.json，这样中国地图才会出现，不然只会出现右下角的南海诸岛
import china from 'echarts/map/json/china.json'
echarts.registerMap('china', china)

<template>
 <div class="index_background" >
 </div>
</template>
<style>
.index_background{ background: url('~@/../static/images/login-bg.png') center top no-repeat;}
</style>