[转]javascript把数字格式化转换成货币型

原文:http://www.juyimeng.com/javascript-number-format-currency.html

 

 

function outputMoney(number) {
	number=number.replace(/\,/g,"");
	if (isNaN(number)||number=="") return "";
		number = Math.round(number*100) /100;
	if(number<0)
		return '-'+outputDollars(Math.floor(Math.abs(number)-0) + '') + outputCents(Math.abs(number) - 0);
	else
		return outputDollars(Math.floor(number-0) + '') + outputCents(number - 0);
}
function outputDollars(number)
{
	if (number.length<= 3)
		return (number == '' ? '0' : number);
	else{
		var mod = number.length%3;
		var output = (mod == 0 ? '' : (number.substring(0,mod)));
		for (i=0 ; i< Math.floor(number.length/3) ; i++)
		{
		  if ((mod ==0) && (i ==0))
		  output+= number.substring(mod+3*i,mod+3*i+3);
		  else
		  output+= ',' + number.substring(mod+3*i,mod+3*i+3);
		}
		return (output);
	}
}
function outputCents(amount){
	amount = Math.round( ( (amount) - Math.floor(amount) ) *100);
	return (amount<10 ? '.0' + amount : '.' + amount);
}