数字格式化转换

之前用Crystal做了一个数字转English Word的Formula

刚刚心血来潮, 大半个晚上写了JS版本的数字转换, 由于JS的Build-In功能不是很强大,米有数字的格式化等功能,就写了2个Function, 一个做格式化, 一个做数字转英文的操作.

FUNCTION 解释:

formatNbr(src, num, sep, per, mode)
src: 需格式化的数据源,可以是数字或数字字符串
num: 小数部分长度
sep: 千分位标记
per: 小数点标记
mode: 小数部分截取操作 R 四舍五入, C Ceil, 其他相当于Floor

nbrToEngWord(src, sep, per, mode)
src: 格式化过的 数字字符串
sep: 千分位标记
per: 小数点标记
mode: U 大写, L 小写, 其他大小写混合

<script type="text/javascript">var sepStringM=new Array("", "Thousand ", "Million ", "Billion ", "Trillion ", " ", " ");var nbrStringA=new Array(" ", "One ", "Two ", "Three ", "Four ", "Five ", "Six ", "Seven ", "Eight ", "Nine ");var nbrStringB=new Array("Ten ", "Eleven ", "Twelve ", "Thirteen ", "Fourteen ", "Fifteen ", "Sixteen ", "Seventeen ", "Eighteen ", "Nineteen ");var nbrStringC=new Array(" ", "Twenty ", "Thirty ", "Fourty ", "Fifty ", "Sixty ", "Seventy ", "Eighty ", "Ninety ");alert("数字格式化: 12321231100.2555555 小数带3位四舍五入\n"+formatNbr("12321231100.2555555", 3, "," , ".","R"));alert("数字格式化-德国格式: 12321231100.2555555 小数带3位\n"+formatNbr(12321231100.2555555, 3, "." , ",","F"));alert("全大写E文, 数字是12321231100.2555555, 最多取2位小数转E文\n"+nbrToEngWord(formatNbr(12321231100.2555555, 3, "," , ".","R"),",",".","U"));alert("全小写E文,数字是10001.00\n"+nbrToEngWord(formatNbr(10001.00, 3, "," , ".","R"),",",".","L"));alert("默认大小写混合模式\n"+nbrToEngWord(formatNbr(12321231100.2555555, 3, "," , ".","R"),",",".",""));function nbrToEngWord(src, sep, per, mode){  var int=src.split(per)[0];  var dec=src.split(per)[1]=="undefined"?"00":src.split(per)[1];  var str="";  var tmp=int.split(sep);  for (var i=0;i<tmp.length;i++){    if (tmp[i].length==1){      str=str+nbrStringA[parseInt(tmp[i])]+sepStringM[tmp.length-i-1];    } else {      if (tmp[i].length==2){        if (tmp[i].substring(0,1)=="1"){          str=str+nbrStringB[parseInt(tmp[i].substring(1,2))]+sepStringM[tmp.length-i-1];        } else {          str=str+nbrStringC[parseInt(tmp[i].substring(0,1))]+nbrStringA[parseInt(tmp[i].substring(1,2))]+sepStringM[tmp.length-i-1];        }      } else {         if (tmp[i].substring(0,1)=="0") {           //         } else {            str=str+nbrStringA[parseInt(tmp[i].substring(0,1))]+"Hundred ";         }          if (tmp[i].substring(1,2)=="1"){            str=str+nbrStringB[parseInt(tmp[i].substring(2,3))]+sepStringM[tmp.length-i-1];          } else {            if (tmp[i].substring(1,2)=="0"){              str=str+nbrStringA[parseInt(tmp[i].substring(2,3))]+sepStringM[tmp.length-i-1];            } else {              str=str+nbrStringC[parseInt(tmp[i].substring(1,2))]+nbrStringA[parseInt(tmp[i].substring(2,3))]+sepStringM[tmp.length-i-1];            }          }      }    }  }  dec=(dec.length>2)?dec.substring(0,2):dec;  if (dec.length==1) {dec=dec+"0";}  if (dec=="00") {  } else {    if (dec.substring(0,1)=="1"){      str=str+"And "+nbrStringB[parseInt(dec.substring(1,2))]+"Cents";    } else {      if (dec.substring(1,2)=="0") {        str=str+"And "+nbrStringA[parseInt(dec.substring(1,2))]+"Cents";      } else {        str=str+"And "+nbrStringC[parseInt(dec.substring(0,1))]+nbrStringA[parseInt(dec.substring(1,2))]+"Cents";      }    }  }  switch (mode){    case "U":      str=str.toUpperCase();      break;    case "L":      str=str.toLowerCase();      break;    default:      break;  }  return str;}function formatNbr(src, num, sep, per, mode){  var nbr;  var cnt;  var tmp  var int, dec;  switch (typeof(src)){    case "string":      nbr=src;      break;    case "number":      nbr=src.toString();      break;    default:      break;  }  int=nbr.split(".")[0];  dec=typeof(nbr.split(".")[1])=="undefined"?0:nbr.split(".")[1];  cnt=Math.floor((int.length-1)/3);  for (var i=cnt;i>0;i--){    int=int.substring(int.length-i*3,0)+sep+int.substring(int.length-i*3,int.length);  }  if (num>0) {    if (dec.length>=num) {      switch (mode) {        case "R":          dec=(Math.round(parseInt(dec)/Math.pow(10, (dec.length-num)))).toString().split(".")[0];          break;        case "C":          dec=(Math.ceil(parseInt(dec)/Math.pow(10, (dec.length-num)))).toString().split(".")[0];          break;        default:          dec=dec.substring(0,num);          break;      }    } else {      tmp=num-dec.length;      for (var i=0;i<tmp;i++){        dec=dec+"0";      }    }    return int+per+dec;  } else {    return int;  }}</script>