         }
                    }
                }
            ]
            title: {
                text: '折线图堆叠'
            },
            tooltip: {
                trigger: 'axis'
            },
            legend: {
                data: ['邮件营销', '联盟广告', '视频广告', '直接访问', '搜索引擎']
            },
            grid: {
                left: '3%',
                right: '4%',
                bottom: '3%',
                containLabel: true
            },
    