摘要：
1.后台计算百分比： **方法一： public String getPercent(Integer num,Integer totalPeople ){ String percent ; Double p3 = 0.0; if(totalPeople == 0){ p3 = 0.0; }else{ p3 = num*1.0/totalPeople; } NumberFormat nf = NumberFormat.getPercentInstance(); nf.setMi... 阅读全文