/**
* 将标签的值格式化
* id 标签id
* min 最小值
* max 最大值
*/
function toFloat(id,min,max){
 var htmlVal = $("#"+id).html();
 var index = htmlVal.indexOf(".");
 var result = "";
 if(index > 0){
 htmlVal = htmlVal.replaceAll("0+?$","");
 var len = htmlVal.substring(index+1).length;
 if(len > min){
  if(len > max){
   result = Number(htmlVal).toFixed(max);
   result = result.replaceAll("0+?$","");
  }else{
   result = Number(htmlVal).toFixed(len);
   result = result.replaceAll("0+?$","");
  }
 }else {
  result = Number(htmlVal).toFixed(min);
 }
 }else {
 result = Number(htmlVal).toFixed(min);
 
 }
 $("#"+id).html(result);
}