业务需求，默认是圆点，需要把线的由圆点改为线

红色线是理论，点是历史理论，绿色线是实际， 点是历史实际，在series里的顺序也是这样排的。

打印出来的params里的marker就是圆点，改这段代码就可以了

 tooltip: {trigger: 'axis',axisPointer: {crossStyle: {color: '#999'}},backgroundColor: appStore.getThemeObj['--xxx-content-bg'],borderColor: appStore.getThemeObj['--xxx-content-bg'],textStyle: {color: appStore.getThemeObj['--xxx-second-content-color']},confine: true,formatter(params) {let tip = ''let textlet titleconst therolineMarker = `<span style="display:inline-block;margin-right:4px;width:10px;height:3px;line-height:3px;vertical-align:middle;background-color:#F63F3F;"></span>`const AclineMarker = `<span style="display:inline-block;margin-right:4px;width:10px;height:3px;line-height:3px;vertical-align:middle;background-color:#15D11E;"></span>`for(let i = 0; i < params.length; i++) {title = params[0].axisValueLabel + '<br />'if (params[i].componentSubType === 'line') {const name = params[i].seriesIndex === 0 ? '理论xxx：' : '实际xxx：'const lineStyle = params[i].seriesIndex === 0 ? therolineMarker : AclineMarkertext = `${lineStyle}${name}${params[i].value[1]} ℃ <br />`}if (params[i].componentSubType === 'scatter') {const name = params[i].seriesIndex === 1 ? '历史理论xxx：' : '历史实际xxx：'text = `${params[i].marker}${name}${params[i].value[1]} ℃ <br />`}tip += text}// console.log(tip,'--tip--');return `${title}${tip}`},},