指定PIE饼图扇形每个扇面的颜色，修改每个data的ItemStyle对象的color属性即可。{value:235, name:‘买衣服’,itemStyle: {color: ‘#9966ff’}}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>五分钟上手之折线图</title>
<!-- 引入 echarts.js -->
<script src="https://cdn.bootcss.com/echarts/4.2.1-rc1/echarts.min.js" type="text/javascript"></script>
<script src="http://code.jquery.com/jquery-1.8.0.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">
// 折线图
$.ajax({
url: "data.json",
data: {},
type: 'GET',
success: function(data) {
/* alert(JSON.stringify(data))*/
},
});
// 基于准备好的dom，初始化echarts实例
var myChart = echarts.init(document.getElementById('main'));
// 指定图表的配置项和数据
myChart.setOption({
tooltip: {
trigger: 'item',
formatter: "{a} <br/>{b}: {c} ({d}%)"
},
legend: {
orient: 'vertical',
x: 'left',
data: ['在线', '离线']
},
series: [{
name: '访问来源',
type: 'pie',
radius: ['50%', '70%'],
avoidLabelOverlap: false,
label: {
normal: {
show: false,
position: 'center'
},
emphasis: {
show: true,
textStyle: {
fontSize: '30',
fontWeight: 'bold'
}
}
},
labelLine: {
normal: {
show: false
}
},
data: [
{ value: 12, name: '在线', itemStyle: { color: '#005eff' } },
{ value: 3, name: '离线', itemStyle: { color: '#ff9194' } },
]
}]
});
</script>
</body>
</html>
