程式碼：

var xData = ['a', 'b', 'c', 'd', 'e'];
var yData = [80, 87, 51, 81, 23];
option = {
    backgroundColor: 'black',
    color: ['#3398DB'],
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'line',
            lineStyle: {
                opacity: 0
            }
        },
        formatter: 
 
function(prams) {
            return "數量：" + prams[0].data
        }
    },
    grid: {
        left: '0%',
        right: '0%',
        bottom: '0%',
        top: '7%',
        containLabel: true,
        z: 22
    },
    xAxis: [{
        type: 'category',
        gridIndex: 0,
        data: xData,
        axisTick: {
            alignWithLabel: 
 
true
        },
        axisLine: {
            lineStyle: {
                color: 'white',
            }
        },
        axisLabel: {
            show: true,
            color: 'white',
            textStyle: {
                fontSize: 18
            }
        }
    }],
    yAxis: [{
        type: 
 
'value',
        gridIndex: 0,
        splitLine: {
            show: false
        },
        axisTick: {
            show: false
        },
        axisLine: {
            lineStyle: {
                color: 'white',
            }
        },
        axisLabel: {
            color: 'white',
            formatter: '{value}',
            textStyle: {
                fontSize: 18
            }
        }
    }],
    series: [{
            name: '數量',
            type: 'bar',
            barWidth: '30%',
            xAxisIndex: 0,
            yAxisIndex: 0,
            label: {
                normal: {
                    show: true,
                    position: "top",
                    textStyle: {
                        color: "#ffc72b",
                        fontSize: 20
                    }
                }
            },
            itemStyle: {
                normal: {
                    color: new echarts.graphic.LinearGradient(
                        0, 0, 0, 1, [{
                                offset: 0,
                                color: '#00feff'
                            },
                            {
                                offset: 0.5,
                                color: '#027eff'
                            },
                            {
                                offset: 1,
                                color: '#0286ff'
                            }
                        ]
                    )
                }
            },
            data: yData,
            zlevel: 11

        },

    ]
};