一、实现效果

二、代码配置
采用组件的形式来实现该功能
（1）父组件

<template>
  <div class="page-con">
    <div class="main-con">
      <item></item>
    </div>
  </div>
</template>

<script>
import item from '../bigdata/components/item.vue'
export default {
  components: {
    item
  }
}
</script>

<style lang="scss" scoped>
.page-con {
  width: 100%;
  height: 100%;
  .main-con {
    width: 40%;
    height: 33%;
  }
}
</style>

（2）子组件

<template>
  <div class="bar">
    <div ref="volumn" class="volume" />
  </div>
</template>

<script>
import echarts from "echarts";
export default {
  data() {
    return {
      myChart: null,
    };
  },
  mounted() {
    // 获取数据。
    if (this.$refs.volumn) {
      this.reloadChart();
      // 自适应浏览器。
      window.addEventListener("resize", () => {
        this.reloadChart();
      });
    }
  },
  // 组件销毁。
  beforeDestroy() {
    this.disposeChart();
  },
  methods: {
    drawChart() {
      this.myChart = this.$echarts.init(this.$refs.volumn);
      var option = {
        backgroundColor: "#03213D",
        animation: true, // 控制动画是否开启
        // animationDuration: 10000, // 动画的时长, 它是以毫秒为单位
        animationDuration: function (arg) {
          console.log(arg);
          return 1000 * arg;
        },
        animationEasing: "bounceOut", //linear 缓动动画
        animationThreshold: 8, // 动画元素的阈值
        tooltip: {
          trigger: "axis",
          backgroundColor: "rgba(0,0,0,.6)",
          borderColor: "rgba(147, 235, 248, 0)",
          textStyle: {
            color: "#FFF",
          },
        },
        grid: {
          left: "10%",
          top: "18%",
          right: "5%",
          bottom: "25%",
        },
        legend: {
          top: "4%",
          left: "75%",
          itemWidth: 15,
          itemHeight: 10,
          itemStyle: {
            color: "#18A4FF",
          },
          icon: "rect",
          padding: 0,
          textStyle: {
            color: "#c0c3cd",
            fontSize: 13,
            padding: [2, 0, 0, 0],
          },
        },
        xAxis: {
          data: ["数据1", "数据2", "数据3", "数据4", "数据5", "数据6"],
          axisLine: {
            show: true, //隐藏X轴轴线
            lineStyle: {
              color: "#163a5f",
              width: 2,
            },
          },
          axisTick: {
            show: false, //隐藏X轴刻度
            alignWithLabel: true,
          },
          axisLabel: {
            show: true,
            textStyle: {
              color: "#BDD8FB", //X轴文字颜色
              fontSize: this.fontSize(0.35),
            },
            interval: 0,
            formatter: function (value) {
              var ret = ""; //拼接加\n返回的类目项
              var maxLength = 4; //每项显示文字个数
              var valLength = value.length; //X轴类目项的文字个数
              var rowN = Math.ceil(valLength / maxLength); //类目项需要换行的行数
              if (rowN > 1) {
                //如果类目项的文字大于5,
                for (var i = 0; i < rowN; i++) {
                  var temp = ""; //每次截取的字符串
                  var start = i * maxLength; //开始截取的位置
                  var end = start + maxLength; //结束截取的位置
                  //这里也可以加一个是否是最后一行的判断，但是不加也没有影响，那就不加吧
                  temp = value.substring(start, end) + "\n";
                  ret += temp; //凭借最终的字符串
                }
                return ret;
              } else {
                return value;
              }
            },
          },
        },
        yAxis: [
          {
            type: "value",
            // name: "单位：ml",
            nameTextStyle: {
              color: "#BDD8FB",
              fontSize: this.fontSize(0.35),
            },
            splitLine: {
              show: false,
              lineStyle: {
                color: "rgba(255, 255, 255, 0.15)",
                type: "dashed", // dotted 虚线
              },
            },
            axisTick: {
              show: false,
            },
            axisLine: {
              show: false, //隐藏X轴轴线
              lineStyle: {
                color: "#163a5f",
                width: 1,
              },
            },
            axisLabel: {
              show: false,
              textStyle: {
                color: "#BDD8FB",
                fontSize: this.fontSize(0.35),
              },
            },
          },
          {
            type: "value",
            name: "",
            nameTextStyle: {
              color: "#BDD8FB",
              fontSize: this.fontSize(0.35),
            },
            splitLine: {
              show: false,
              lineStyle: {
                width: 1,
                color: "#CED2DB",
              },
            },
            axisTick: {
              show: false,
            },
            axisLine: {
              show: false, //隐藏X轴轴线
              lineStyle: {
                color: "#163a5f",
                width: 2,
              },
            },
            axisLabel: {
              show: false,
              textStyle: {
                color: "#797A7F",
                fontSize: this.fontSize(0.35),
              },
            },
          },
        ],
        series: [
          {
            name: "降雨量",
            type: "bar",
            barWidth: 15,
            itemStyle: {
              color: function (params) {
                if (params.value < 100) {
                  return {
                    type: "linear",
                    x: 0, //右
                    y: 0, //下
                    x2: 0, //左
                    y2: 1, //上
                    colorStops: [
                      {
                        offset: 0.05,
                        color: "#ffffff", // 0% 处的颜色
                      },
                      {
                        offset: 0.1,
                        color: "#ff0000",
                      },
                      {
                        offset: 1,
                        color: "transparent", // 100% 处的颜色
                      },
                    ],
                  };
                } else {
                  return {
                    type: "linear",
                    x: 0, //右
                    y: 0, //下
                    x2: 0, //左
                    y2: 1, //上
                    colorStops: [
                      {
                        offset: 0.01,
                        color: "#ffffff", // 0% 处的颜色
                      },
                      {
                        offset: 0.1,
                        color: "#13D5FC",
                      },
                      {
                        offset: 1,
                        color: "transparent", // 100% 处的颜色
                      },
                    ],
                  };
                }
              },
              barBorderRadius: [20, 20, 0, 0],
            },
            label: {
              show: true,
              position: "top",
              distance: 0,
              color: "#1ACDDC",
              formatter: "{c}",
            },
            data: [200, 85, 112, 275, 305, 415],
          },
          {
            // name: '背景',
            type: "bar",
            barWidth: "15px",
            xAxisIndex: 0,
            yAxisIndex: 1,
            barGap: "-100%",
            data: [100, 100, 100, 100, 100, 100], //背景阴影长度
            itemStyle: {
              normal: {
                color: "rgba(255,255,255,0.01)",
                barBorderRadius: [0, 0, 0, 0],
                borderColor: "rgb(33,156,251)",
              },
            },
            tooltip: {
              show: false,
            },
            zlevel: 9,
          },
        ],
      };
      option.timeTicket = setInterval(() => {
        // 获取当前数据的索引
        var currentIndex = option.series[0].data.length - 1;
        // 将当前数据移动到数组末尾
        option.series[0].data.push(option.series[0].data.shift());
        // 更新图表
        this.myChart.setOption(option);
      }, 1000);
    },
    // 字体自适应。
    fontSize(res) {
      const clientWidth =
        window.innerWidth ||
        document.documentElement.clientWidth ||
        document.body.clientWidth;
      if (!clientWidth) return;
      const fontSize = 40 * (clientWidth / 1920);
      return res * fontSize;
    },
    // 销毁图表。
    disposeChart() {
      if (this.myChart) {
        this.myChart.dispose();
      }
    },
    // 重新加载图表。
    reloadChart() {
      this.disposeChart();
      this.drawChart();
    },
  },
};
</script>

<style lang="scss" scoped>
.bar {
  width: 100%;
  height: 100%;
  .volume {
    width: 100%;
    height: 100%;
  }
}
</style>