echarts如何设置隐藏纵轴，yAxis即为纵轴设置

yAxis: {show:false},

option = {
    title: {
        text: 'Awesome Chart'
    },
    xAxis: {
        data: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
        show:false
    },
    yAxis: {show:false},
    series: [{
        type: 'bar',
        data:[220, 182, 191, 234, 290, 330, 310]
    }]
};