使用方便的纯js图表插件：JScharts

<mce:script type="text/javascript" src="jscharts_mb.js" mce_src="jscharts_mb.js"></mce:script>

<div id="graph">Loading graph...</div>

<mce:script type="text/javascript"><!--
var myData = new Array(['阿萨德', 42], ['企鹅', 38], ['Be entertained', 10], ['Communicate professionally', 7], ['Not sure/Don/'t know', 2]);
var colors = ['#C40000', '#750303', '#F9ECA2', '#FA9000', '#FA5400'];
var myChart = new JSChart('graph', 'pie');
myChart.patchMbString();//设置可以显示中文
myChart.setFontFamily("微软雅黑");
myChart.setTitleFontSize(20);
myChart.setPieUnitsFontSize(12); // 设置饼图的项目标识字体大小为10px
myChart.setDataArray(myData);
myChart.colorizePie(colors);
myChart.setTitle('标题标题');
myChart.setTitleColor('#8E8E8E');
myChart.setTextPaddingTop(30);
myChart.setSize(616, 321);
myChart.setPiePosition(308, 170);
myChart.setPieRadius(85);
myChart.setPieUnitsColor('#555');
myChart.setBackgroundImage('chart_bg.jpg');
myChart.draw();
// --></mce:script>