tab切换时图表宽度不对echarts 折线配置项内容和展示

tab切换时图表宽度不对，宽度会默认成百分之百，求解决办法

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