js数字转大写数字

js数字转大写数字

function DX(n) {
if (!/^(0|[1-9]d*)(.d+)?$/.test(n)) return "数据非法";
var unit = "京亿万仟佰拾兆万仟佰拾亿仟佰拾万仟佰拾元角分", str = "";
n += "00";
var p = n.indexOf('.');
if (p >= 0)
n = n.substring(0, p) + n.substr(p+1, 2);
unit = unit.substr(unit.length - n.length); 
for (var i=0; i < n.length; i++) str += '零壹贰叁肆伍陆柒捌玖'.charAt(n.charAt(i)) + unit.charAt(i); 
return str.replace(/零(仟|佰|拾|角)/g, "零").replace(/(零)+/g, "零").replace(/零(兆|万|亿|元)/g, "$1").replace(/(兆|亿)万/g, "$1").replace(/(京|兆)亿/g, "$1").replace(/(京)兆/g, "$1").replace(/(京|兆|亿|仟|佰|拾)(万?)(.)仟/g, "$1$2零$3仟").replace(/^元零?|零分/g, "").replace(/(元|角)$/g, "$1整");
}