echart饼图点击示例，包含2种点击事件我很懒什么都不想写我很懒什么都不想写我很懒什么都不想写我很懒什么都不想写我很懒

直接点饼图/点饼图图例

<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <title>eCharts 统计图 x 轴实现拉伸滑动</title>
  <script src="https://cdn.bootcss.com/echarts/4.2.1-rc1/echarts.min.js" type="text/javascript"></script>
</head>

<body>
  <div id="mainDiv" style="height: 400px; width: 500px"></div>
  <script>
    drawFun();
    function drawFun() {
      let option = {
        tooltip: {
          trigger: "item",
        },
        legend: {
          top: "5%",
          left: "center",
        },
        series: [
          {
            name: "Access From",
            type: "pie",
            radius: ["40%", "70%"],
            avoidLabelOverlap: false,
            label: {
              show: false,
              position: "center",
            },
            emphasis: {
              label: {
                show: true,
                fontSize: "40",
                fontWeight: "bold",
              },
            },
            labelLine: {
              show: false,
            },
            data: [
              { value: 1048, name: "Search Engine" },
              { value: 735, name: "Direct" },
              { value: 580, name: "Email" },
              { value: 484, name: "Union Ads" },
              { value: 300, name: "Video Ads" },
            ],
          },
        ],
      };
      const eChart = echarts.init(document.getElementById('mainDiv')); // 初始化 echarts 实例
      eChart.setOption(option);
      //表格大小自适应
      eChart.resize();
      window.addEventListener("resize", () => {
        setTimeout(function () {
          eChart.resize();
        }, 1000);
      });
      //点击事件
      eChart.on("click", function (param) {
        alert("name值：" +
          param.name +
          '\n' +
          "value值：" +
          param.value);
      });
      //范围点击
      eChart.on("legendselectchanged", function (param) {
        eChart.setOption({
          legend: { selected: { [param.name]: true } },
        });
        alert("name值：" +
          param.name +
          '\n' +
          "value值：拿不到的" +
          "");
      });
    }
  </script>
</body>

</html>