阿拉伯数字金额转换为中文大写

function digitUppercase(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');}