取消点击事件两种方法：

1. legend: {selectedMode:false,}//取消图例上的点击事件

2. myChart.off('legendselectchanged')
   myChart.on('legendselectchanged', function (params) {
   myChart.setOption({
   legend:{selected:{[params.name]: true}}
   })
   console.log('点击了', params.name);
   });
   完整代码
   <template>
   <div id="echarts">
   <div >
   <div>
   <div id="myChart" :style="{ width: '600px', height: '300px' }"></div>
   </div>
   </div>
   </div>
   </template>
   <script>
   import * as echarts from 'echarts'
   import { getarrival } from '@/api/product' //调用后台接口
   export default {
   name: 'Echarts',
   data() {
   return {
   newData: [],
   obj:{
   id:1
   }
   }
   },
   mounted() {
   this.drawLine()
   },
   methods: {
   drawLine() {
   getarrival(this.obj).then((res) => {
   this.newData= res.data.data.arrivel_later_result.bar //接口返回数据赋值this.newData
   // 基于准备好的dom，初始化echarts实例
   let myChart = echarts.init(document.getElementById('myChart'))
   // 绘制图表
   myChart.setOption({
   title: {
   text: this.newData.title.text,
   subtext: this.newData.title.subtext,
   left: this.newData.title.left
   },
   tooltip: {
   trigger: 'item',
   formatter: '{a}
   {b} : {c} ({d}%)'
   },
   legend: {
   bottom: 10,
   left: 'center',
   selectedMode: false //取消图例上的点击事件
   },
   series: [
   {
   name: '迟到占比',
   type: this.newData.series[0].type,
   radius: '65%',
   center: ['50%', '50%'],
   selectedMode: 'single',
   data: this.newData.series[0].data,
   emphasis: this.newData.series[0].emphasis,
   label: {
   //饼图图形上的文本标签
   normal: {
   show: true,
   position: 'inner', //标签的位置
   textStyle: {
   fontWeight: 300,
   fontSize: 16 //文字的字体大小
   },
   formatter: '{d}%'
   }
   }
   }
   ]
   })
   // 关键代码
   myChart.off('legendselectchanged')
   myChart.on('legendselectchanged', function (params) {
   myChart.setOption({
   legend:{selected:{[params.name]: true}}
   })
   console.log('点击了', params.name);
   });
   })
   },

}
}
</script>