var option = { tooltip: { trigger: 'item', formatter: "{a} <br/>{b}: {c} ({d}%)" }, legend: { orient: 'vertical', x: 'left', data: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎'] }, series: [{ name: '访问来源', type: 'pie', radius: ['50%', '70%'], avoidLabelOverlap: false, labelLine: { normal: { show: false } }, data: [{ value: 335, label: { normal: { show: true, position: 'center', textStyle: { fontSize: '30', fontWeight: 'bold' } }, }, name: '直接访问' }, { value: 310, label: { normal: { show: false, position: 'center', textStyle: { fontSize: '30', fontWeight: 'bold' } } }, name: '邮件营销' }, { value: 234, label: { normal: { show: false, position: 'center', textStyle: { fontSize: '30', fontWeight: 'bold' } } }, name: '联盟广告' }, { value: 135, label: { normal: { show: false, position: 'center', textStyle: { fontSize: '30', fontWeight: 'bold' } } }, name: '视频广告' }, { value: 1548, label: { normal: { show: false, position: 'center', textStyle: { fontSize: '30', fontWeight: 'bold' } } }, name: '搜索引擎' } ] }] }; myChart.setOption(option) myChart.on('mouseover', 'series', function(params) { for(var i=0;i<option.series[0].data.length;i++){ option.series[0].data[i].label.normal.show = false; } option.series[0].data[params.dataIndex].label.normal.show = true; console.log(option) this.setOption(option) });