Bonfire: Roman Numeral Converter 阿拉伯转罗马

最新推荐文章于 2019-12-06 23:03:08 发布

原创最新推荐文章于 2019-12-06 23:03:08 发布 · 662 阅读

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 function Arabit2Roman(arabic){
    var alpha = [ 'I', 'V', 'X', 'L', 'C', 'D', 'M' ];
    var roman="";
    var bit = 0;
    while (arabic > 0)
    {
        var tempnum = arabic % 10;
        switch (tempnum)
        {
            case 3:
            {
                roman=alpha[bit]+roman;
                tempnum--;
            }
            case 2:
            {
                roman=alpha[bit]+roman;
                tempnum--;
            }
            case 1:
            {
                roman=alpha[bit]+roman;
                break;
            }
            case 4:
            {
                roman=alpha[bit + 1]+roman;
                roman=alpha[bit]+roman;
                break;
            }
            case 8:
            {
                roman=alpha[bit]+roman;
                tempnum--;
            }
            case 7:
            {
                roman=alpha[bit]+roman;
                tempnum--;
            }
            case 6:
            {
                roman=alpha[bit]+roman;
                tempnum--;
            }
            case 5:
            {
                roman=alpha[bit + 1]+roman;
                break;
            }
            case 9:
            {
                roman=alpha[bit + 2]+roman;
                roman=alpha[bit]+roman;
                break;
            }
            default:
            {
                break;
            }
        }
        bit += 2;
        arabic = Math.floor(arabic / 10);
    }
    return roman;
}
function convert(num) {
    var araNum = Arabit2Roman(num);
    console.log(araNum);
    return araNum;
}

convert(36);