1 ///<summery>小写金额转化大写金额</summery>
2 function AmountLtoU(amount) {
3 if (isNaN(amount) || amount >= 1000000000000) return "无效金额！"; //数值最大不超过1万亿
4 var sPrefix = amount < 0 ? "(负)" : ""; //将负号‘-’显示成汉字‘(负)’
5 var sAmount = Math.abs(amount).toFixed(2); //格式化成两位小数格式（两位小数对应“'角”和“分”）
6 var sUnit = '仟佰拾亿仟佰拾万仟佰拾元角分'; //14个权位单位
7 var sCapital = '零壹贰叁肆伍陆柒捌玖'; //10个大写数字
8 sAmount = sAmount.replace(".", ""); //去除小数点（使数字与权位对应）
9 sUnit = sUnit.substr(sUnit.length - sAmount.length); //截取权位
10 var sOutput = "";
11 for (var i = 0, len = sAmount.length; i < len; i++) { //拼接数字与权位单位
12 sOutput += sCapital.substr(sAmount.substr(i, 1), 1) + sUnit.substr(i, 1);
13 }
14 return sPrefix + sOutput.replace(/零角零分$/, '整').replace(/零[仟佰拾]/g, '零').replace(/零{2,}/g, '零')
15 .replace(/零([亿|万])/g, '$1').replace(/零+元/, '元').replace(/亿零{0,3}万/, '亿').replace(/^元/, "零元");
16 };
