Echarts堆叠柱状图（每个堆叠柱显示具体的占比）

 1 formatter: function (params) {
 2 
 3 var relVal = params[0].name;
 4 
 5 var value = 0;
 6 
 7 for (var i = 0, l = params.length; i < l; i++) {
 8 
 9 value += params[i].value;
10 
11 }
12 
13 for (var i = 0, l = params.length; i < l; i++) {
14 
15 relVal += ‘
16 
17 ‘ + params[i].seriesName + ‘ : ‘ + (100 *
18 
19 parseFloat(params[i].value) / parseFloat(value)).toFixed(2) + "%";
20 
21 }
22 
23 return relVal;
24 
25 },