使用dataset设置多条数据，指定x轴为时间类型时，无法正常显示echarts 配置项内容和展示

使用dataset设置多条数据，指定x轴为时间类型时，无法正常显示

      option = {
  dataset:{
      source:[
          ['time',"aaa",'bbb'],
          ["2018-10-14 14:48:00",0,100],
          ["2018-10-14 17:05:00",4,89],
          ["2018-10-14 18:38:00",13,65],
          ["2018-10-14 20:57:00",13,47],
          ["2018-10-14 23:02:00",34,53],
          ["2018-10-15 01:11:00",23,13],
          ["2018-10-15 02:37:00",45,14],
          ["2018-10-15 04:56:00",56,15],
          ["2018-10-15 06:20:00",67,12],
          ["2018-10-15 07:10:00",56,43],
          ["2018-10-15 08:48:00",43,10],
          ["2018-10-15 11:14:00",43,34],
          ["2018-10-15 12:48:00",45,23]
          ]
  },
          legend: {
          type: 'scroll',
          bottom: 10,
          icon: 'roundRect'
        },
        tooltip: {
          trigger: 'axis'
        },
      xAxis: {
        boundaryGap: false,
        type: 'category',
        // type:'time'
    },
      yAxis: {
        type: 'value'
    },
  series:[
      {type:'line'},
      {type:'line'},
  ]
};