dataset-单系列barecharts 配置项内容和展示

      var option = {
    legend: {},
    tooltip: {},
    dataset: {
        "source": [
            [ "1", "2", "3"],
            [ '产品1', 1, 31],
            [ '产品3', 9, 11],
          ]
    },
    series: [
        {
            type: 'bar'
        },
        {
            type: 'bar'
        },
        {
            type: 'bar'
        }
    ],
    xAxis: {type: 'category'},
    yAxis: {},
};