JavaScript部分：
var initChart = echarts.init(document.getElementById('box')); var option = { color:['#ff0000','#00ff00','#0000ff','#ffff00','#ff00ff','#00ffff'], title: { text: '折线图堆叠' }, tooltip: { trigger: 'axis' }, legend: { data: ['邮件营销', '联盟广告', '视频广告', '直接访问', '搜索引擎'] }, grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true }, toolbox: { feature: { saveAsImage: {} } }, xAxis: { type: 'category', boundaryGap: false, data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日'] }, yAxis: { type: 'value' }, series: [ { name: '邮件营销', type: 'line', stack: '总量', data: [120, 132, 101, 134, 90, 230, 210] }, { name: '联盟广告', type: 'line', stack: '总量', data: [220, 182, 191, 234, 290, 330, 310] }, { name: '视频广告', type: 'line', stack: '总量', data: [150, 232, 201, 154, 190, 330, 410] }, { name: '直接访问', type: 'line', stack: '总量', data: [320, 332, 301, 334, 390, 330, 320] }, { name: '搜索引擎', type: 'line', stack: '总量', data: [820, 932, 901, 934, 1290, 1330, 1320] } ] }; initChart.setOption(option) function clearChart () { initChart.clear() } function reDraw () { initChart.setOption(option) } <script src="https://cdn.bootcss.com/echarts/4.2.1-rc1/echarts.min.js"></script> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>HTML部分：
<div style="width:500px;height:500px" id="box"></div> <button type="button" onclick="clearChart()" style="width:50px;height: 50px;"></button> <button type="button" onclick="reDraw()" style="width:50px;height: 50px;"></button>图表执行clear()后 重新绘制颜色定义失效问题
解决：在实例化图表的时候不填写第二个参数（主题‘light’）
