双柱状图上面文字根据数据变化颜色

// 近期计划与实际生产表
        drawproducebare(){
            this.producebar = echarts.init(document.getElementById('producebar'));
            this.producebar.setOption({
                legend: {
                    selectedMode: false,
                    textStyle: {                            //图例文字的样式
                        color: '#fff',               //图例文字颜色
                        fontSize: 12                      //图例文字大小
                    },
                    right: 30, 
                },
                tooltip: {},
                // backgroundColor: '#0f375f',
                // animation: false,
                grid: {
                    top: "20%",
                    right:"5%",
                    bottom: "10%" //也可设置left和right设置距离来控制图表的大小
                },
                xAxis: {
                    data: ['11-24', '11-25', '11-26', '11-27', '11-28'],
                    axisLine: {
                        show: false, //隐藏X轴轴线
                    },
                    axisTick: {
                        show: false //隐藏X轴刻度
                    },
                    axisLabel: {
                        show: true,
                        margin: 14,
                        fontSize: 14,
                        textStyle: {
                            color: "#fff" //X轴文字颜色
                        }
                    },

                },
                yAxis: [{
                    type: "value",
                    name : '个',
                    nameTextStyle: {
                        color: "#fff",
                        nameLocation: "start",
                    },
                    gridIndex: 0,
                    min: 0,
                    max: 100,
                    interval: 25,
                    // splitNumber: 4,
                    splitLine: {
                        show: true,
                        lineStyle: {
                            color: '#113763',
                            width: 1
                        },
                    },
                    axisTick: {
                        show: false
                    },
                    axisLine: {
                        show: false,
                    },
                    axisLabel: {
                        show: true,
                        margin: 14,
                        fontSize: 14,
                        textStyle: {
                            color: "#fff" //X轴文字颜色
                        }
                    },
                }, ],
                series: [{
                        name: "计划生产个数",
                        type: "bar",
                        barWidth: 20,
                        itemStyle: {
                            normal: {
                                color: '#7974F7'
                            }
                        },
                        // data: [20, 80, 100, 40, 34],
                        data: [
                            { value: 20, label: { textStyle: { color: '#fff' } } },
                            { value: 80, label: { textStyle: { color: '#fff' } } },
                            { value: 100, label: { textStyle: { color: '#fff' } } },
                            { value: 40, label: { textStyle: { color: '#fff' } } },
                            { value: 34, label: { textStyle: { color: '#fff' } } },
                        ],
                        z: 10,
                        zlevel: 0,
                        "label": {
                            "show": true,
                            "position": "top",
                            "distance": 10,
                            fontSize: 16,
                            "color": "#fff"
                        }
                    },
                    {
                        name: "实际生产个数",
                        type: "bar",
                        formatter: '{b}' ,
                        barWidth: 20,
                        itemStyle: {
                            normal: {
                                color: '#1F79D7'
                            }
                        },
                        // data: [11, 55, 43, 78, 22],
                        data: [
                            { value: 11, label: { textStyle: { color: '#FF3B3B' } } },
                            { value: 55, label: { textStyle: { color: '#FF3B3B' } } },
                            { value: 43, label: { textStyle: { color: '#FF3B3B' } } },
                            { value: 78, label: { textStyle: { color: '#1F79D7' } } },
                            { value: 22, label: { textStyle: { color: '#FF3B3B' } } },
                        ],
                        z: 10,
                        zlevel: 0,
                        "label": {
                            "show": true,
                            "position": "top",
                            "distance": 10,
                            fontSize: 16,
                            "color": "#1F79D7"
                        }
                    },
                    {
                        // 分隔
                        type: "pictorialBar",
                        itemStyle: {
                            normal:{
                                color:"#0F375F"
                            }
                        },
                        symbolRepeat: "fixed",
                        symbolMargin: 6,
                        symbol: "rect",
                        symbolClip: true,
                        symbolSize: [20, 2],
                        symbolPosition: "start",
                        symbolOffset: [13, -2],
                        // symbolBoundingData: this.total,
                        data:  [11, 55, 43, 78, 22],
                        width: 25,
                        z: 0,
                        zlevel: 1,
                    },
                ]
            },true)
        },