1、自定义数据标签颜色，字号
代码：
option = {
legend: {
top: 'bottom'
},
toolbox: {
show: true,
feature: {
mark: { show: true },
dataView: { show: true, readOnly: false },
restore: { show: true },
saveAsImage: { show: true }
}
},
series: [
{
name: 'Nightingale Chart',
type: 'pie',
radius: [50, 250],
center: ['50%', '50%'],
roseType: 'area',
itemStyle: {
borderRadius: 8
},
data: [
{ value: 40, name: '国家级高新企业(40家)',label:{color:"#f6280d",fontSize:20}},
{ value: 38, name: '新型研发机构(38家)',label:{color:"#f6280d",fontSize:20}},
{ value: 32, name: '院士专家工作站(32家)' ,label:{color:"#f6280d",fontSize:20}},
{ value: 30, name: '高层次人才数(32人)' ,label:{color:"#f6280d",fontSize:20}},
{ value: 28, name: '技术交易总额（28亿元）' ,label:{color:"#f6280d",fontSize:20}},
{ value: 26, name: '城镇化率26（%）' ,label:{color:"#f6280d",fontSize:20}},
]
}
]
};
效果：
