饼图的使用
data = $Q.random(0,400);
data2 = $Q.random(0,400);
data3 = $Q.random(0,400);
data4 = $Q.random(0,400);
data5 = $Q.random(0,400);
//data支持直接数组
var pie = $Q.chartPie({
box:'#box',//容器元素，需要定义宽高
data:[
data,data2,data3,data4,data5
],
names:["样品1","样品2","样品3","样品4","样品5"],
});