js人民币转换大写函数

js人民币转换大写函数

// n为数字
function rmbUpper(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")
    );
}

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