源代码 :
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>ECharts 实例</title> <!-- 引入 echarts.js --> <script src="https://cdn.staticfile.org/echarts/4.3.0/echarts.min.js"></script> </head> <body> <!-- 为ECharts准备一个具备大小(宽高)的Dom --> <div id="main" style="width: 600px;height:400px;"></div> <script type="text/javascript"> // 基于准备好的dom,初始化echarts实例 var myChart = echarts.init(document.getElementById('main')); setTimeout(function () { option = { legend: {}, tooltip: { trigger: 'axis', showContent: false }, dataset: { source: [ ['product', '2012', '2013', '2014', '2015', '2016', '2017'], ['Matcha Latte', 41.1, 30.4, 65.1, 53.3, 83.8, 98.7], ['Milk Tea', 86.5, 92.1, 85.7, 83.1, 73.4, 55.1], ['Cheese Cocoa', 24.1, 67.2, 79.5, 86.4, 65.2, 82.5], ['Walnut Brownie', 55.2, 67.1, 69.2, 72.4, 53.9, 39.1] ] }, xAxis: {type: 'category'}, yAxis: {gridIndex: 0}, grid: {top: '55%'}, series: [ {type: 'line', smooth: true, seriesLayoutBy: 'row'}, {type: 'line', smooth: true, seriesLayoutBy: 'row'}, {type: 'line', smooth: true, seriesLayoutBy: 'row'}, {type: 'line', smooth: true, seriesLayoutBy: 'row'}, { type: 'pie', id: 'pie', radius: '30%', center: ['50%', '25%'], label: { formatter: '{b}: {@2012} ({d}%)' }, encode: { itemName: 'product', value: '2012', tooltip: '2012' } } ] }; myChart.on('updateAxisPointer', function (event) { var xAxisInfo = event.axesInfo[0]; if (xAxisInfo) { var dimension = xAxisInfo.value + 1; myChart.setOption({ series: { id: 'pie', label: { formatter: '{b}: {@[' + dimension + ']} ({d}%)' }, encode: { value: dimension, tooltip: dimension } } }); } }); myChart.setOption(option); }); </script> </body> </html>
运行结果