JS代码如下：
/**
* 数字金额大写转换(可以处理整数,小数,负数)
* @param
* @arrange (512.笔记) jb51.cc
**/
var digitUppercase = function(n) {
var fraction = ['角','分'];
var digit = [
'零','壹','贰','叁','肆', '伍','陆','柒','捌','玖'
];
var unit = [
['元','万','亿'], ['','拾','佰','仟']
];
var head = n < 0 ? '欠' : '';
n = Math.abs(n);
var s = '';
for (var i = 0; i < fraction.length; i++) {
s += (digit[Math.floor(n * 10 * Math.pow(10,i)) % 10] + fraction[i]).replace(/零./,'');
}
s = s || '整';
n = Math.floor(n);
for (var i = 0; i < unit[0].length && n > 0; i++) {
var p = '';
for (var j = 0; j < unit[1].length && n > 0; j++) {
p = digit[n % 10] + unit[1][j] + p;
n = Math.floor(n / 10);
}
s = p.replace(/(零.)*零$/,'').replace(/^$/,'零') + unit[0][i] + s;
}
return head + s.replace(/(零.)*零元/,'元')
.replace(/(零.)+/g,'零')
.replace(/^整$/,'零元整');
};
console.log(digitUppercase(12.3));
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