option = { title: { text: "各个国家专利年份统计", textStyle: { color: "#000" } }, 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: { textStyle:{ fontSize:18 }, data: ['China', 'United States', 'Japan','Korea'] }, toolbox: { feature: { saveAsImage: {} } }, grid: { left: '3%', right: '7%', bottom: '3%', containLabel: true }, xAxis: [{ type: 'category', name:"年份", axisLabel: { fontSize: 18 }, data: ['2014', '2015', '2016', '2017', '2018'] }], yAxis: [{ type: 'value', name:"数量", axisLabel: { fontSize: 18 }, }], series: [{ name: 'China', type: 'bar', label: { show: true, fontSize: 18, color:'#000', position:'top' }, data: [3283, 4398, 8463, 8247, 5296] }, { name: 'United States', type: 'bar', label: { show: true, fontSize: 18, color:'#000', position:'top' }, data: [2539, 3143, 2980, 2643, 894] }, { name: 'Japan', type: 'bar', label: { show: true, fontSize: 18, color:'#000', position:'top' }, data: [1078 , 987, 871, 467, 123], }, { name: 'Korea', type: 'bar', label: { show: true, fontSize: 18, color:'#000', position:'top' }, data: [784,866,1189,957,186], } ] };