option = {
title: {
text: 'Step Line'
},
tooltip: {
trigger: 'axis'
},
legend: {
data:['Step Start', 'Step Middle', 'Step End']
},
grid: {
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true
},
toolbox: {
feature: {
saveAsImage: {},
dataZoom: { } //当增加了这一句后,data中的null就被连起来了
}
},
xAxis: {
type: 'category',
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [
{
name:'Step Start',
type:'line',
step: 'start',
data:[120, 132, null, null, 90, 230, 210]
},
{
name:'Step Middle',
type:'line',
step: 'middle',
data:[220, 282, 201, 234, null, 430, 410]
},
{
name:'Step End',
type:'line',
step: 'end',
data:[450, 432, 401, 454, 590, null, 510]
}
]
};