var category = [];
var dottedBase = +new Date();
var lineData = [];
var barData1 = [];
var barData2 = [];
for (var i = 0; i < 30; i++) {
  var date = new Date(dottedBase += 1000 * 3600 * 24);
  category.push([
    date.getFullYear(),
    date.getMonth() + 1,
    date.getDate()
  ].join('-'));
  var b = Math.floor(Math.random() * 500);
  var d = Math.floor(Math.random() * (-500));
  barData1.push(b)
  barData2.push(d)
}

option = {
  backgroundColor: '#030c2b',
  tooltip: {
    trigger: 'axis',
    axisPointer: {
      type: 'shadow',
      label: {
        show: true,
        backgroundColor: '#333'
      }
    }
  },
  legend: {
    data: ['收入','支出'],
    y: 20,
    textStyle: {
      color: '#ccc'
    }
  },
  xAxis: {
     type: 'category',
    data: category,
    axisTick: {
      alignWithLabel: true
    },
     
    splitLine: {
        show: false,
         
      },
    axisLabel:{
        //fontWeight:10,
        //interval:2,
        fontsize:2,
        align:'center',
         color:'rgba(255,255,255,0.3)'
      }
  },
   yAxis: [{
    type: 'value',
    splitLine: {
        show: true,
        lineStyle:{
          color:'rgba(255,255,255,0.2)'
        }
      },
      axisLine:{
        show:false
      },
      axisLabel:{
        fontWeight:10,
        fontsize:5,
        color:'rgba(255,255,255,0.3)'
      }
      
  }],
  series: [{
    name: '收入',
    type: 'bar',
    stack: '总量',
    barWidth: 10,
    itemStyle: {
      normal: {
        barBorderRadius: [50,50,0,0],
        color: new echarts.graphic.LinearGradient(
          0, 0, 0, 1,
          [
            {offset: 0, color: '#0490f2'},
            {offset: 1, color: '#0490f2'}
          ]
        )
      }
    },
    data: barData1
  },{
    name: '支出',
    type: 'bar',
    stack: '总量',
    barWidth: 10,
    itemStyle: {
      normal: {
        barBorderRadius: [0,0,50,50],
        color: new echarts.graphic.LinearGradient(
          0, 0, 0, 1,
          [
            {offset: 0, color: '#d03559'},
            {offset: 1, color: '#d03559'}
          ]
        )
      }
    },
    data: barData2
  }]
};

点击运行 》