option = { title: { text: '折线示例' }, tooltip: { trigger: 'axis', position: function(point, params, dom, rect, size){ console.log(dom.clientWidth) }, }, legend: { data:['数据1','数据2'] }, xAxis: { type: 'category', boundaryGap: false, data: ['周一','周二','周三','周四','周五','周六','周日'] }, yAxis: { type: 'value' }, series: [ { name:'数据1', type:'line', data:[11, 11, 15, 13, 12, 13, 10] }, { name:'数据2', type:'line', data:[1, -2, 2, 5, 3, 2, 0] } ] };