最簡單有效的數字金額大寫轉換

/** 數字金額大寫轉換(可以處理整數,小數,負數) */

function smalltobig(n) {

var fraction = ["角", "分"];

var digit = ["零", "壹", "貳", "叄", "肆", "伍", "陸", "柒", "捌", "玖"];

var unit = [["元", "萬", "億"], ["", "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")

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