书籍借阅图echarts 柱状配置项内容和展示

      app.title = '书籍借阅图';

option = {
    tooltip : {
        trigger: 'axis',
        axisPointer : {            // 坐标轴指示器，坐标轴触发有效
            type : 'shadow'        // 默认为直线，可选为：'line' | 'shadow'
        }
    },
    legend: {
        data:['收回', '出借', '现有总量']
    },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis : [
        {
            type : 'value'
        }
    ],
    yAxis : [
        {
            type : 'category',
            axisTick : {show: false},
            data : ['周一','周二','周三','周四','周五','周六','周日']
        }
    ],
    series : [
        {
            name:'收回',
            type:'bar',
            label: {
                normal: {
                    show: true,
                    position: 'inside'
                }
            },
            data:[2, 1, 2, 4, 0, 2, 4]
        },
        {
            name:'出借',
            type:'bar',
            stack: '总量',
            label: {
                normal: {
                    show: true
                }
            },
            data:[-3, -3, -2, -5, -5, -0, -3]
        },
        {
            name:'现有总量',
            type:'bar',
            stack: '总量',
            label: {
                normal: {
                    show: true,
                    position: 'left'
                }
            },
            data:[20, 19, 18, 17, 12, 19, 20]
        }
    ]
};