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<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width,initial-scale=1.0" /> <title>Echarts Example</title> </head> <body> <div id="main" style="width: 600px; height: 400px;"></div> <script src="//cdn.bootcss.com/echarts/4.5.0/echarts.js"></script> <script type="text/javascript"> const myChart = echarts.init(document.getElementById('main')); const weeks = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']; const data = [27, 32, 69, 127, 147, 76, 86]; const option = { xAxis: { type: 'category', data: weeks }, yAxis: { type: 'value' }, series: [{ type: 'bar', data: data, emphasis: { itemStyle: { color: '#336666' } } }], }; myChart.setOption(option); let cursor = -1; setInterval(() => { if (cursor >= 0) { myChart.dispatchAction({ type: 'downplay', seriesIndex: 0, dataIndex: cursor % data.length }); } // 切换高亮数据项 myChart.dispatchAction({ type: 'highlight', seriesIndex: 0, dataIndex: (cursor += 1) % data.length, }); }, 500); </script> </body> </html>
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