阿拉巴数字转化为中文大写

//阿拉伯数字转换为简写汉字function Arabia_To_SimplifiedChinese(Num) {    for (let i = Num.length - 1; i >= 0; i--) {        Num = Num.replace(",", "");  //替换Num中的“,”        Num = Num.replace(" ", "");  //替换Num中的空格    };    if (isNaN(Num)) { //验证输入的字符是否为数字        //alert("请检查小写金额是否正确");        return;    };    //字符处理完毕后开始转换，采用前后两部分分别转换    let part = String(Num).split(".");    let newchar = "";    //小数点前进行转化    for (let i = part[0].length - 1; i >= 0; i--) {        if (part[0].length > 10) {            //alert("位数过大，无法计算");            return "";        };  //若数量超过拾亿单位，提示        let tmpnewchar = "";        let perchar = part[0].charAt(i);        switch (perchar) {            case "0":  tmpnewchar = "零" + tmpnewchar;break;            case "1": tmpnewchar = "一" + tmpnewchar; break;            case "2": tmpnewchar = "二" + tmpnewchar; break;            case "3": tmpnewchar = "三" + tmpnewchar; break;            case "4": tmpnewchar = "四" + tmpnewchar; break;            case "5": tmpnewchar = "五" + tmpnewchar; break;            case "6": tmpnewchar = "六" + tmpnewchar; break;            case "7": tmpnewchar = "七" + tmpnewchar; break;            case "8": tmpnewchar = "八" + tmpnewchar; break;            case "9": tmpnewchar = "九" + tmpnewchar; break;        }        switch (part[0].length - i - 1) {            case 0: tmpnewchar = tmpnewchar; break;            case 1: if (perchar != 0) tmpnewchar = tmpnewchar + "十"; break;            case 2: if (perchar != 0) tmpnewchar = tmpnewchar + "百"; break;            case 3: if (perchar != 0) tmpnewchar = tmpnewchar + "千"; break;            case 4: tmpnewchar = tmpnewchar + "万"; break;            case 5: if (perchar != 0) tmpnewchar = tmpnewchar + "十"; break;            case 6: if (perchar != 0) tmpnewchar = tmpnewchar + "百"; break;            case 7: if (perchar != 0) tmpnewchar = tmpnewchar + "千"; break;            case 8: tmpnewchar = tmpnewchar + "亿"; break;            case 9: tmpnewchar = tmpnewchar + "十"; break;        }        newchar = tmpnewchar + newchar;    }    //替换所有无用汉字，直到没有此类无用的数字为止    while (newchar.search("零零") != -1 || newchar.search("零亿") != -1 || newchar.search("亿万") != -1 || newchar.search("零万") != -1) {        newchar = newchar.replace("零亿", "亿");        newchar = newchar.replace("亿万", "亿");        newchar = newchar.replace("零万", "万");        newchar = newchar.replace("零零", "零");    }    //替换以“一十”开头的，为“十”    if (newchar.indexOf("一十") == 0) {        newchar = newchar.substr(1);    }    //替换以“零”结尾的，为“”    if (newchar.lastIndexOf("零") == newchar.length - 1) {        newchar = newchar.substr(0, newchar.length - 1);    }    return newchar;}