var num = 100;
var dataer=[11, 158, 176, 138, 149, 141,132, 154, 129, 193, 167, 132, 154];
var dataec=[189, 96, 68, 76, 68, 49, 121,66, 57, 62, 43, 49, 78,];
var cooarr=[];
for(i in dataer){
if(dataer[i] - dataec[i]>=num){
cooarr.push({coord:[parseInt(i),dataer[i]]})
//当小于某个数的时候，让标示变成黑色
}else if(dataer[i] - dataec[i]<= -num){
cooarr.push({coord:[parseInt(i),dataer[i]],itemStyle:{normal:{color:'#000'}}})
}
};
console.log(cooarr)
option= {
tooltip: {
trigger: 'axis'
},
legend: {
data:['平均价格','实际价格','采购总金额'],
y:10
},
grid: {
top:'15%',
left: '3%',
right: '4%',
bottom: '5%',
containLabel: true
},
xAxis: {
type: 'category',
data: ['16/01','16/02','16/03','16/04','16/05','16/06','16/07','16/08','16/09','16/10','16/11','16/12','17/01']
},
yAxis: {
type: 'value',
},
series: [
{
name:'平均价格',
type:'line',
data:dataer,
markPoint: {
data: cooarr
},
},
{
name:'实际价格',
type:'line',
data:dataec,
},
{
name:'采购总金额',
type:'bar',
barWidth:'15%',
data:[138, 146, 158, 166, 128, 129, 126,121,198, 166, 158, 176, 138,],
},
]
};