JS 数字转换为大写金额

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function DX(n) {           if (!/^(0|[1-9]\d*)(\.\d+)?$/.test(n))             return "数据非法";         var unit = "千百拾亿千百拾万千百拾元角分", 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(千|百|拾|角)/g, "零").replace(/(零)+/g, "零").replace(/零(万|亿|元)/g, "$1").replace(/(亿)万|壹(拾)/g, "$1$2").replace(/^元零?|零分/g, "").replace(/元$/g, "元整"); }

　　

 

 

 

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function format (num) {         return (num.toFixed(2) + '').replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, '$&,');     }

　　

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function rmoney(s) { return parseFloat(s.replace(/[^\d\.-]/g, "")); }