Echarts showLoading hideLoading

import echarts from "echarts";

methods: {
//调用 showLoading 方法显示
   load(){
      let myChart = echarts.init(document.getElementById('histogram_2_center_1'));
       myChart.showLoading({
        text: "数据加载中...",
        color: "#3174F2",
        textColor: "#ffffc2",
        maskColor: "rgba(255, 255, 255, 0)",
        zlevel: 0,
      });
    },
    //调用 hideLoading 方法隐藏加载动画。
    hideLoad(){
      let myChart = echarts.init(document.getElementById('histogram_2_center_1'));
      myChart.hideLoading()
    },
}