drawLine () {
      window.addEventListener('resize', this.drawLine)
      let myChart = this.$echarts.init(this.$refs.echarts)
      var colors = [
        '#11B9F8',
        '#FF6A69',
        '#90ED7C',
        '#F7A35C',
        '#8085E9',
        '#f76363',
        '#E4D254',
        '#601A86',
        '#A38A78'
      ]
      var data = [{
        name: '1月',
        value: 1
      },
        {
          name: '2月',
          value: 2
        },
        {
          name: '3月',
          value: 3
        },
        {
          name: '4月',
          value: 4
        },
        {
          name: '5月',
          value: 5
        },
        {
          name: '6月',
          value: 6
        },
        {
          name: '7月',
          value: 6
        },
        {
          name: '8月',
          value: 6
        },
        {
          name: '9月',
          value: 6
        }
      ]
      var option = {
        color: colors,
        series: [{
          name: '事件处理情况',
          type: 'pie',
          radius: ['40%', '80%'],
          center: ['50%', '50%'],
          roseType: 'radius',
          label: {
            show: true,
            normal: {
              position: 'outside',
              fontSize: 16,
              formatter: (params) => {
                return params.name + ':' + params.value
              }
            }
          },
          labelLine: {
            length: 1,
            length2: 20
          },
          data: data
        }]
      }
      myChart.clear()
      myChart.resize()
      myChart.setOption(option)
    },