drawLine2() {
                var that = this;
                var chartDom = document.getElementById('echarts2');
                var myChart = echarts.init(chartDom);
//气泡图
//暂时的假数据
                const className = ['进口项下海外代付', '信用证项下打包货款', '出口商票融资'];
                const colorList = ['#27E9A0', '#F9E115', '#007EFF'];
                var data1 = [
                    [
                        [1, 1, 1, '进口项下海外代付1'],
                        [1, 12, 12, '进口项下海外代付2'],
                        [2, 8, 8, '进口项下海外代付5'],
                        [3, 7, 7, '进口项下海外代付5'],
                        [4, 8, 8, '进口项下海外代付5'],
                        [5, 4, 4, '进口项下海外代付5'],
                        [6, 1, 1, '进口项下海外代付5'],
                        [7, 10, 10, '进口项下海外代付5'],
                        [8, 11, 11, '进口项下海外代付5'],
                        [9, 12, 12, '进口项下海外代付5'],
                        [10, 11, 11, '进口项下海外代付5'],
                        [11, 10, 10, '进口项下海外代付5'],
                    ],
                    [[1, 10, 10, '信用证项下打包货款1'],
                        [2, 10, 10, '信用证项下打包货款2'],
                        [3, 5, 5, '信用证项下打包货款3'],
                        [4, 10, 10, '信用证项下打包货款4']],
                    [
                        [1, 10, 10, '出口商票融资1'],
                        [2, 5, 5, '出口商票融资2'],
                        [3, 3, 3, '出口商票融资3'],
                    ],

                ];
                const series = [];
                className.forEach((item, index) => {
                    series.push({
                        name: item,
                        data: data1[index],
                        type: 'scatter',
                        symbolSize: 20,
                        itemStyle: {
                            normal: {
                                shadowBlur: 0,
                                shadowOffsetY: 0,
                                color: new echarts.graphic.RadialGradient(0.5, 0.2, 0.5, [
                                    {
                                        offset: 0,
                                        color: '#fff',
                                    },
                                    {
                                        offset: 1,
                                        color: colorList[index],
                                    },
                                ]),
                            },
                        },
                    });
                });
                var option = {
                    grid: {
                        left: '70',
                        right: '70',
                        top: '10%',
                        bottom: '5%',
                    },
                    legend: {
                        show: true,
                        top: 0,
                        itemGap: 30, // 垂直间距
                        y: 'top', // 延Y轴居中
                        data: className,
                    },
                    tooltip: {
                        trigger: 'item',
                        axisPointer: {
                            type: 'none',
                        },
                        formatter: function (params) {
                            let str = '<div style="text-align: left;">' + params.data[3] + '</div>';
                            str += '<div>办理次数：<span style="color: #1971C4">' + params.data[2] + '</span>次</div>';
                            str += '<div>授信金额：<span style="color: #FF5E56">' + params.data[1] + '</span>万元</div></div>';
                            return str;
                        },
                    },
                    xAxis: {
                        show: true,
                        name: '时间:月',
                        nameTextStyle: {
                            color: '#6E6E6E',
                            padding: [28, 0, 0, 0],
                        },
                        splitLine: {
                            show: false,
                            lineStyle: {
                                type: 'dashed',
                            },
                        },
                        axisLine: {
                            show: false,
                            lineStyle: {
                                color: '#dfe4ee',
                                width: 0,
                            },
                        },
                        axisLabel: {
                            color: '#000',
                            formatter: '{value}月',
                        },
                    },
                    yAxis: {
                        show: true,
                        name: '交易金额（万元）',
                        nameTextStyle: {
                            color: '#6E6E6E',
                            padding: [0, 0, 0, -20],
                        },
                        splitLine: {
                            lineStyle: {
                                type: 'dashed',
                            },
                        },
                        axisLine: {
                            onZero: false,
                            lineStyle: {
                                color: '#dfe4ee',
                                width: 1,
                            },
                        },
                        axisLabel: {
                            color: '#000',
                            formatter: '{value}',
                        },
                        scale: true,
                    },
                    series: series,
                };
                myChart.clear();
                myChart.resize();
                myChart.setOption(option);
            },