Echarts实战案例代码(44)：同时渲染折线图实现和虚线渲染实现已发生和预测趋势的解决方案

option = {
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value'
    },
    series: [{
        data: ["-", "-", "-", 934, 1290, 1330, 1320],
        connectNulls: true,
        lineStyle: {
            type: "dash"
        },
        label:{show:true,position:"top"},
        type: 'line'
    }, {
        data: [820, 932, 901, 934, "-", "-", "-"],
        connectNulls: true,
        label:{show:true,position:"top"},
        type: 'line'
    }]
};