xAxis:
xAxis: [
{
type: 'category',
boundaryGap: true,
data: (function (){
var now = new Date();
var res = [];
var len = 10;
while (len--) {
res.unshift(now.toLocaleTimeString().replace(/^\D*/,''));
now = new Date(now - 2000);
}
return res;
})()
},
{
type: 'category',
boundaryGap: true,
data: (function (){
var res = [];
var len = 10;
while (len--) {
res.push(10 - len - 1);
}
return res;
})()
}
],
series:
series: [
{
name: '预购队列',
type: 'bar',
xAxisIndex: 1,
yAxisIndex: 1,
data: (function (){
var res = [];
var len = 10;
while (len--) {
res.push(Math.round(Math.random() * 1000));
}
return res;
})()
},
{
name: '最新成交价',
type: 'line',
data: (function (){
var res = [];
var len = 0;
while (len < 10) {
res.push((Math.random()*10 + 5).toFixed(1) - 0);
len++;
}
return res;
})()
}
]
定时刷新数据:
app.count = 11;
setInterval(function (){
var axisData = (new Date()).toLocaleTimeString().replace(/^\D*/, '');
var data0 = option.series[0].data;
var data1 = option.series[1].data;
data0.shift();
data0.push(Math.round(Math.random() * 1000));
data1.shift();
data1.push((Math.random() * 10 + 5).toFixed(1) - 0);
option.xAxis[0].data.shift();
option.xAxis[0].data.push(axisData);
option.xAxis[1].data.shift();
option.xAxis[1].data.push(app.count++);
myChart.setOption(option);
}, 2100);
案例参考官方:https://www.echartsjs.com/examples/zh/editor.html?c=dynamic-data