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具体效果如下：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script language="javascript" type="text/javascript"src="jquery.js"></script>
<script language="javascript" type="text/javascript" src="jquery.flot.js"></script>
<script language="javascript" type="text/javascript" src="jquery.flot.pie.js"></script>
<script type="text/javascript">
$(function(){
var data = [
{ label: "苹果", data: 10},
{ label: "香蕉", data: 30},
{ label: "西瓜", data: 90},
{ label: "葡萄", data: 70},
{ label: "柑橘", data: 80},
{ label: "菠萝", data: 110}
];
$.plot($("#pie1"), data, {
series: {
pie: {
show: true //显示饼图
}
},
legend: {
show: false //不显示图例
}
});
$.plot($("#pie2"), data, {
series: {
pie: {
show: true //显示饼图
}
}
});
$.plot($("#pie3"), data, {
series: {
pie: {
show: true,
radius: 1, //半径
label: {
show: true,
radius: 2/3,
formatter: function(label, series){
return '<div style="font-size:8pt;text-align:center;padding:2px;color:white;">'+label+'<br/>'+Math.round(series.percent)+'%</div>';
},
threshold: 0.03 //这个值小于0.03，也就是3%时，label就会隐藏
}
}
},
legend: {
show: false
}
});
$.plot($("#pie4"), data,
{
series: {
pie: {
show: true
}
},
grid: {
hoverable: true,
clickable: true
}
});
$("#pie4").bind("plothover", pieHover);
$("#pie4").bind("plotclick", pieClick);
});
function pieHover(event, pos, obj)
{
if (!obj)
return;
percent = parseFloat(obj.series.percent).toFixed(2);
$("#hover").html('<span style="font-weight: bold; color: '+obj.series.color+'">'+obj.series.label+' ('+percent+'%)</span>');
}
function pieClick(event, pos, obj)
{
if (!obj)
return;
percent = parseFloat(obj.series.percent).toFixed(2);
alert(''+obj.series.label+': '+percent+'%');
}
</script>
<style>
div.graph
{
width: 400px;
height: 300px;
border: 1px dashed gainsboro;
}
</style>
</head>
<body>
<h3>饼图1</h3>
<div id="pie1" class="graph" ></div>
<hr>
<h3>饼图2</h3>
<div id="pie2" class="graph" ></div>
<hr>
<h3>饼图3</h3>
<div id="pie3" class="graph" ></div>
<hr>
<h3>饼图4</h3>
<div id="pie4" class="graph" ></div>
<div id="hover"></div>
<hr>
</body>
</html>