引用

//反应时长 durationCharts
categoryCommonChart(studyBehavior.durationCharts, 'durationCharts') 

function categoryCommonChart(odata, dom){var myChart = echarts.init(document.getElementById(dom));let oarr = []oarr = odata.series.map(function(item){let color = item.name == '个人平均' ? '#00bdff' : '#4cf100'return {name: item.name,type: 'line',data: item.data,	lineStyle: {color: color //折线颜色},itemStyle: {color: color //节点颜色}}})option = {tooltip: {trigger: 'axis'},grid: {top: '30',left: '15',right: '20',bottom: '30',containLabel: true},legend: {itemWidth:15,  itemHeight:15,  data: odata.legendData,icon: 'roundRect',itemHeight: 8,textStyle: { //图例文字的样式color: '#999',fontSize: 12},left: 'center',bottom: 'bottom',},title: {text: '均次时长',left: '20',textStyle:{color: '#999',fontSize: 12,fontWeight: 400},			   	},grid: {top: '30',left: '15',right: '20',bottom: '30',containLabel: true},xAxis: {type: 'category',data: odata.xData,nameTextStyle: {color: '#666', //y轴名称颜色fontSize: 10 //y轴名称字体大小},axisLabel: {color: '#666', //x轴刻度标签颜色},axisTick: {show: false //不显示刻度线},axisLine: {lineStyle: {color: '#999',width: 1, //这里是为了突出显示加上的  },symbol: ['none', 'arrow'],    //只在末端显示箭头symbolSize: [6, 10],//原来是[8, 16]symbolOffset:[0, 8],//箭头段移动8个像素},},yAxis: {type: 'value',		    	nameTextStyle: {color: '#666', //y轴名称颜色fontSize: 10 //y轴名称字体大小},axisLabel: {color: '#666', //x轴刻度标签颜色formatter: '{value}s' //加上单位's'},axisTick: {show: false //不显示刻度线},splitLine: {//网格线lineStyle: {type: "dotted", //设置网格线类型 dotted：虚线   solid:实线},show: true, //隐藏或显示},axisLine: {lineStyle: {color: '#999',width: 1},                    symbol: ['none', 'arrow'],symbolOffset: 10,symbolSize: [6, 10]//原来是[8, 16]},                },series: oarr};myChart.setOption(option, true);
}

data

         "durationCharts":{"legendData":["个人平均","班级平均"],"type":"line","xData":["第1题","第2题","第3题"],"series":[{"name":"个人平均","type":"line","data":[23,4,7]},{"name":"班级平均","type":"line","data":[31,10,11]}]},"participationRate":66.7},