jquery精度计算代码 jquery指定精确小数位

/*** 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);}