function(){

var points = this.points; //表示同一个分类的不同系列点    

var a =this.category;     

var b; 

var c="";

var total = 0;    

for(var i = 0, len = points.length; i < len; i++) {          

if(points[i].series.visible&&this.points[i].value){ 

b = (this.points[i].value/10000).toFixed(0)+"万元";

c += ''+"<font color='"+points[i].color+"'>●</font>"+points[i].seriesName+':'+b+"<br>";

total += points[i].value; //求分类下的系列和

}   

}     

return a+"<br>"+c; 

}