配置项如下
let list = [
{
name: '1月',
value: 220,
},
{
name: '2月',
value: 182,
},
{
name: '3月',
value: 191,
},
{
name: '4月',
value: 220,
},
{
name: '5月',
value: 182,
},
{
name: '6月',
value: 191,
},
{
value: 191,
name: '7月',
},
{
name: '8月',
value: 234,
predict: true,
},
{
name: '9月',
value: 290,
predict: true,
},
{
name: '10月',
value: 330,
predict: true,
},
{
name: '11月',
value: 310,
predict: true,
},
{
name: '12月',
value: 210,
predict: true,
},
];
let data1 = [];
let data2 = [];
list.forEach((item) => {
if (item.predict) {
data2.push([item.name, item.value]);
} else {
data1.push([item.name, item.value]);
}
});
// 如果是折线图,此处需要追加实际数据的最后一组数据,如果是柱状图,则不需要。
data2.unshift(data1[data1.length - 1]);
let labels = list.map((m) => {
return m.name;
});
option = {
tooltip: {
trigger: 'axis',
},
xAxis: {
type: 'category',
data: labels,
},
yAxis: {
type: 'value',
},
legend: {
show: true,
data: ['实际支出', '预测支出'],
},
series: [
{
name: '实际支出',
type: 'line',
data: data1,
},
{
name: '预测支出',
type: 'line',
lineStyle: {
type: 'dashed',
},
symbol: 'none',
data: data2,
},
],
};