echarts的resize不生效

解决方法
width：写成百分比（必须）
height: 固定单位（px，vh）
搭配resize使用

 window.onresize = function () {
            twChart.resize();
  };
  window.addEventListener('resize',function(){
        twChart.resize();
    })

   (function(){
        option = {
                title: {
                },
                tooltip: {
                    trigger: 'axis'
                },
                legend: {
                    data:['反馈','已审核','已上报']
                },
                grid: {
                    left: '3%',
                    right: '4%',
                    bottom: '3%',
                    containLabel: true
                },
                toolbox: {
                    feature: {
                        saveAsImage: {}
                    }
                },
                xAxis: {
                    type: 'category',
                    boundaryGap: false,
                    data: ['1月','2月','3月','4月','5月']
                },
                yAxis: {
                    type: 'value'
                },
                series: [
                    {
                        name:'反馈',
                        type:'line',
                        stack: '总量',
                        data:[120, 132, 101, 134, 90]
                    },
                    {
                        name:'已审核',
                        type:'line',
                        stack: '总量',
                        data:[220, 182, 191, 234, 290]
                    },
                    {
                        name:'已上报',
                        type:'line',
                        stack: '总量',
                        data:[150, 232, 201, 154, 190]
                    }
                   
                ]
            };
        var twChart = echarts.init(document.getElementById('twChart'));
        twChart.setOption(option);
        window.onresize = function () {
            twChart.resize();
       };
    
    })()