格式化金额千分位

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<META NAME="Generator" CONTENT="EditPlus">
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<script>
function formatNumber(number,pattern)
{
  var str   = number.toString();
  var strInt;
  var strFloat;
  var formatInt;
  var formatFloat;
  if(/\./g.test(pattern))
  {
   formatInt  = pattern.split('.')[0];
   formatFloat  = pattern.split('.')[1];
  }
  else
  {
   formatInt  = pattern;
   formatFloat  = null;
  }  if(/\./g.test(str))
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   if(formatFloat!=null)
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    var tempFloat = Math.round(parseFloat('0.'+str.split('.')[1])*Math.pow(10,formatFloat.length))/Math.pow(10,formatFloat.length);
    strInt  = (Math.floor(number)+Math.floor(tempFloat)).toString();
    strFloat = /\./g.test(tempFloat.toString())?tempFloat.toString().split('.')[1]:'0';
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    strInt  = Math.round(number).toString();
    strFloat = '0';
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  {
   strInt  = str;
   strFloat = '0';
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  if(formatInt!=null)
  {
   var outputInt = '';
   var zero  = formatInt.match(/0*$/)[0].length;
   var comma  = null;
   if(/,/g.test(formatInt))
   {
    comma  = formatInt.match(/,[^,]*/)[0].length-1;
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   var newReg  = new RegExp('(http://www.cnblogs.com/lcl_1015/admin/file://d%7b'+comma+'%7d)','g'/);   if(strInt.length<zero)
   {
    outputInt  = new Array(zero+1).join('0')+strInt;
    outputInt  = outputInt.substr(outputInt.length-zero,zero)
   }
   else
   {
    outputInt  = strInt;
   }   var
   outputInt   = outputInt.substr(0,outputInt.length%comma)+outputInt.substring(outputInt.length%comma).replace(newReg,(comma!=null?',':'')+'$1')
   outputInt   = outputInt.replace(/^,/,'');   strInt = outputInt;
  }  if(formatFloat!=null)
  {
   var outputFloat = '';
   var zero  = formatFloat.match(/^0*/)[0].length;   if(strFloat.length<zero)
   {
    outputFloat  = strFloat+new Array(zero+1).join('0');
    //outputFloat  = outputFloat.substring(0,formatFloat.length);
    var outputFloat1 = outputFloat.substring(0,zero);
    var outputFloat2 = outputFloat.substring(zero,formatFloat.length);
    outputFloat  = outputFloat1+outputFloat2.replace(/0*$/,'');
   }
   else
   {
    outputFloat  = strFloat.substring(0,formatFloat.length);
   }   strFloat = outputFloat;
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  {
   if(pattern!='' || (pattern=='' && strFloat=='0'))
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    strFloat = '';
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  }  return strInt+(strFloat==''?'':'.'+strFloat);
}
alert(formatNumber(0,''));
alert(formatNumber(12432.21,'#,###'));
alert(formatNumber(12432.21,'#,###.000#'));
alert(formatNumber(12432,'#,###.00'));
alert(formatNumber(12432.419,'#,###.0#'));</script>
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posted on 2011-09-23 10:38 李承隆阅读(286) 评论(0) 编辑收藏举报