官网文字:https://echarts.apache.org/zh/option.html#graphic.elements-text
const elem = {
id: 'text-id',
type: 'text',
style: {
x: 20,
y: 40,
text: 'text文字',
textAlign: 'left',
fill: '#91BCBC',
font: 'PingFang SC',
fontSize: 10,
fontWeight: 400,
lineHeight: 13
},
z: 100
};