SOURCE

var arr = [
4625,
11681,
1351,
47101,
4514,
9790,
43137,
21752,
16900,
1796,
16306,
34343,
16269,
24648,
3327,
13719,
873,
58921,
13642,
13648,
508,
11485,
74595,
8454,
26943,
8106,
63133,
29,
11028,
46029,
67389,
33109,
5160,
25265,
3090,
1767,
78315,
2872,
45178,
2354,
3742,
43180,
18403,
63300,
43517,
19880,
38767,
3845,
25895,
22732,
31103,
11261,
5853,
36043,
65436,
17619,
32214,
29667,
14960,
18625,
66912,
7011,
18009,
14507,
3287,
18641,
3522,
7013,
16623
]
var data = []
var average = []
var sun = 0
arr.forEach(function (item, index) {
    var time = new Date('2020/08/10').getTime()+1000*60*60*24*index
    data.push([time, item])
    sun += item
    average.push([time, parseInt(sun/(data.length))])
})


var lineChart = echarts.init(document.querySelector('.container'));

option = {
    title: {
        text: '云隙1~99999随机红包',
        //textAlign: 'center',
        //left: '50%'
    },
    tooltip: {
        trigger: 'axis',
        axisPointer: {
            type: 'line',
            label: {
                show: true,
                backgroundColor: '#6a7985',
                formatter: function(data) {
                    const date = new Date(data.value)
                    return date.getFullYear()+'-'+(date.getMonth()+1)+'-'+date.getDate()
                }
            }
        }
    },
    xAxis: {
        type: 'time'
    },
    yAxis: {
        type: 'value',
    },
    legend: {
        data: ['游戏币', '平均值']
    },
    series: [
        {
            type: 'line',
            name: '平均值',
            data: average,
            lineStyle: {
                type: 'dashed',
                color: 'blue'
            },
            label: {
            normal: {
                show: true,
                position: 'top'
            }
        },
        },
        {
        data: data,
        areaStyle: {
            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                offset: 0,
                color: 'red'
            }, {
                offset: 0.5,
                color: 'orange'
            }, {
                offset: 1,
                color: '#36a4f5'
            }])
        },
        type: 'line',
        smooth: true,
        name: '游戏币',
        label: {
            normal: {
                show: true,
                position: 'top'
            }
        },
        markLine: {
            silent: true,
            data: [{
                yAxis: 50000
            }]
        },
        symbolSize: 18
    },
    ],
    visualMap: {
        top: 10,
        right: 10,
        pieces: [
            { gt: 0, lte: 10000, color: '#36a4f5'},
            { gt: 0, lte: 50000, color: 'orange'},
        ],
        outOfRange: {
            color: 'red'
        }
    },
    dataZoom: [{
        type: 'inside',
    }, {
        handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
        handleSize: '80%',
        handleStyle: {
            color: '#fff',
            shadowBlur: 3,
            shadowColor: 'rgba(0, 0, 0, 0.6)',
            shadowOffsetX: 2,
            shadowOffsetY: 2
        }
    }],
    grid: {
        bottom: 80
    }
};

lineChart.setOption(option);

<div class="container" style="height:600px;width:100%;margin-top: 30px"></div>

<div id="text"></div>