1.其实这个很容易实现，一个 dispatchAction 方法就解决问题；但是博主在未实现该功能时是花了大力气，各种百度，各种搜；
很难找到简单粗暴的例子，大多数随便回一句你的问题就没下文；
废话太多了...
上图片
上代码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
html,
body {
100%;
height: 100%;
background-color: gray;
}
#myChart {
80%;
height: 70%;
position: fixed;
top: 15%;
left: 10%;
}
</style>
<script src="js/jquery-1.9.1.min.js" type="text/javascript" charset="utf-8"></script>
<script src="echarts3.2.2/echarts.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function() {
var XIdx = [];
var data = [54, 86, 46, 45, 77, 96, 89, 88, 23, 38,
3, 66, 98, 43, 73, 76, 44, 16, 21, 14,
71, 8, 61, 65, 1, 68, 33, 69, 49, 24
];
for(var i = 1; i <= data.length; i++) {
XIdx.push(i);
}
var option = {
backgroundColor: 'white',
grid: {
top: 20,
left: 20,
right: 20,
bottom: 20,
containLabel: true //轴上的数值
},
xAxis: {
type: 'category',
data: XIdx
},
yAxis: {
type: 'value'
},
tooltip: {
trigger: 'axis'
},
series: [{
name: '人',
type: 'line',
data: data
}]
};
var myChart = echarts.init(document.getElementById("myChart"));
myChart.setOption(option);
var index = 0; //播放所在下标
var mTime = setInterval(function() {
myChart.dispatchAction({
type: 'showTip',
seriesIndex: 0,
dataIndex: index
});
index++;
if(index > data.length) {
index = 0;
}
}, 1000);
});
</script>
</head>
<body>
<div id="myChart"></div>
</body>
</html>
注意：dispatchAction 方法是关联到 option的tooltip项，在option里一定要配置tooltip
原文链接：https://blog.csdn.net/LZY_1993/article/details/78630805