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一下这三个div大小不一样 为了保证每次柱状图渲染正确  添加key
<div class="echart1" id="dangerChart1" key="1"></div>
<div class="echart2" id="dangerChart2" key="2"></div>
<div class="echart3" id="dangerChart3" key="3"></div>
changeTab(index) {
            this.activeIndex = index;

            this.$nextTick(() => {
                // 个div加key 或者 清楚instance都可以让div重绘 
                // if (document.getElementById(`dangerChart${index}`).getAttribute('_echarts_instance_')) {
                //     document.getElementById(`dangerChart${index}`).removeAttribute('_echarts_instance_');
                // }
                this.initEchart(index);
            });
        },
 
createEchartsInstance(elId) {
            let el = document.getElementById(elId);
            let chart = echarts.getInstanceByDom(el); //获取实例，不要重复初始化
            if (!chart) {
                chart = echarts.init(el);
                //$once钩子的好处：
                //1每个新的实例都程序化地在后期清理它自己
                //2减少dom查询
                this.$once('hook:beforeDestroy', () => {
                    chart.clear();
                    echarts.dispose(chart);
                });
            }
            return chart;
        },

initEchart(index) {
            this.myChart = this.createEchartsInstance(`dangerChart${index}`);

            // var myChart = echarts.init(chartDom);
            this.myChart.clear();
            let option;
            // 绘制左侧面
            const CubeLeft = echarts.graphic.extendShape({
                shape: {
                    x: 0,
                    y: 0
                },
                buildPath: function (ctx, shape) {
                    // 会canvas的应该都能看得懂，shape是从custom传入的
                    const xAxisPoint = shape.xAxisPoint;
                    const c0 = [shape.x, shape.y];
                    const c1 = [shape.x - 8, shape.y - 8];
                    const c2 = [xAxisPoint[0] - 8, xAxisPoint[1] - 8];
                    const c3 = [xAxisPoint[0], xAxisPoint[1]];
                    ctx.moveTo(c0[0], c0[1]).lineTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).closePath();
                }
            });
            // 绘制右侧面
            const CubeRight = echarts.graphic.extendShape({
                shape: {
                    x: 0,
                    y: 0
                },
                buildPath: function (ctx, shape) {
                    const xAxisPoint = shape.xAxisPoint;
                    const c1 = [shape.x, shape.y];
                    const c2 = [xAxisPoint[0], xAxisPoint[1]];
                    const c3 = [xAxisPoint[0] + 12, xAxisPoint[1] - 6];
                    const c4 = [shape.x + 12, shape.y - 6];
                    ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath();
                }
            });
            // 绘制顶面
            const CubeTop = echarts.graphic.extendShape({
                shape: {
                    x: 0,
                    y: 0
                },
                buildPath: function (ctx, shape) {
                    const c1 = [shape.x, shape.y];
                    const c2 = [shape.x + 12, shape.y - 6];
                    const c3 = [shape.x + 3.5, shape.y - 13];
                    const c4 = [shape.x - 8, shape.y - 8];
                    ctx.moveTo(c1[0], c1[1]).lineTo(c2[0], c2[1]).lineTo(c3[0], c3[1]).lineTo(c4[0], c4[1]).closePath();
                }
            });
            // 注册三个面图形
            echarts.graphic.registerShape('CubeLeft', CubeLeft);
            echarts.graphic.registerShape('CubeRight', CubeRight);
            echarts.graphic.registerShape('CubeTop', CubeTop);

            const MAX = [600, 600, 600, 600, 600, 600, 600];
            const VALUE = [210.9, 260.8, 204.2, 504.9, 440.5, 400.3, 119.0];
            option = {
                backgroundColor: 'transparent',
                tooltip: {
                    trigger: 'axis',
                    axisPointer: {
                        type: 'none'
                    },
                    className: 'chartClass',
                    // eslint-disable-next-line no-unused-vars
                    formatter: function (params, ticket, callback) {
                        const item = params[1];
                        return `<div class="text">未整改  </div> 
                          <div class="fixCount">
                          <div class="circle"></div>
                          <div class="count">数量</div>
                          <div class="num">${item.value}</div>
                          </div>`;
                    }
                },
                grid: {
                    left: 10,
                    right: 10,
                    bottom: 10,
                    top: 10,
                    containLabel: true
                },
                xAxis: {
                    type: 'category',
                    data: ['带排查', '超期排查', '逾期未排查'],
                    axisLine: {
                        show: true,
                        lineStyle: {
                            color: '#BAE7FF'
                        }
                    },
                    offset: 6,
                    axisTick: {
                        show: false,
                        length: 9,
                        alignWithLabel: true,
                        lineStyle: {
                            color: '#7DFFFD'
                        }
                    },
                    axisLabel: {
                        show: true,
                        fontSize: 12
                    }
                },
                yAxis: {
                    // min: 0,
                    // max: 600,
                    // interval: 200,
                    type: 'value',
                    axisLine: {
                        show: false,
                        lineStyle: {
                            color: 'white'
                        }
                    },
                    splitLine: {
                        show: true,
                        lineStyle: {
                            type: 'dashed',
                            color: 'rgba(255,255,255,0.1)'
                        }
                    },
                    axisTick: {
                        show: false
                    },
                    axisLabel: {
                        show: true,
                        fontSize: 12
                    },
                    boundaryGap: ['20%', '20%']
                },
                series: [
                    {
                        type: 'custom',
                        renderItem: function (params, api) {
                            const location = api.coord([api.value(0), api.value(1)]);
                            return {
                                type: 'group',
                                children: [
                                    {
                                        type: 'CubeLeft',
                                        shape: {
                                            api,
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: 'rgba(47,102,192,.27)'
                                        }
                                    },
                                    {
                                        type: 'CubeRight',
                                        shape: {
                                            api,
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: 'rgba(59,128,226,.27)'
                                        }
                                    },
                                    {
                                        type: 'CubeTop',
                                        shape: {
                                            api,
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: 'rgba(72,156,221,.27)'
                                        }
                                    }
                                ]
                            };
                        },
                        data: MAX
                    },
                    {
                        type: 'custom',
                        renderItem: (params, api) => {
                            const location = api.coord([api.value(0), api.value(1)]);
                            var color =
                                api.value(1) > 600
                                    ? 'red'
                                    : new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                                          {
                                              offset: 0,
                                              color: '#20B0D6'
                                          },
                                          {
                                              offset: 0.8,
                                              color: '#0681E7'
                                          }
                                      ]);
                            return {
                                type: 'group',
                                children: [
                                    {
                                        type: 'CubeLeft',
                                        shape: {
                                            api,
                                            xValue: api.value(0),
                                            yValue: api.value(1),
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: color
                                        }
                                    },
                                    {
                                        type: 'CubeRight',
                                        shape: {
                                            api,
                                            xValue: api.value(0),
                                            yValue: api.value(1),
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: color
                                        }
                                    },
                                    {
                                        type: 'CubeTop',
                                        shape: {
                                            api,
                                            xValue: api.value(0),
                                            yValue: api.value(1),
                                            x: location[0],
                                            y: location[1],
                                            xAxisPoint: api.coord([api.value(0), 0])
                                        },
                                        style: {
                                            fill: color
                                        }
                                    }
                                ]
                            };
                        },

                        data: VALUE
                    },
                    {
                        type: 'bar',
                        label: {
                            normal: {
                                show: false,
                                position: 'top',
                                fontSize: 12,
                                color: '#fff',
                                offset: [2, -20]
                            }
                        },
                        itemStyle: {
                            color: 'transparent'
                        },
                        tooltip: {},
                        data: MAX
                    }
                ]
            };
            option && this.myChart.setOption(option, true);
        }
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