将数字转换为大写金额

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/** * 将数字转换为大写金额 */function changeToChinese (Num) {    //判断如果传递进来的不是字符的话转换为字符    if(typeof Num == "number") {        Num = new String(Num);    };    Num = Num.replace(/,/g, "") //替换tomoney()中的“,”    Num = Num.replace(/ /g, "") //替换tomoney()中的空格    Num = Num.replace(/￥/g, "") //替换掉可能呈现的￥字符    if(isNaN(Num)) { //验证输出的字符是否为数字        //alert("请查看小写金额是否正确");        return "";    };    //字符处理完毕后开始转换，采纳前后两局部别离转换    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) {            return "";            //若数量超过拾亿单位，提醒        }        let tmpnewchar = ""        let perchar = part[0].charAt(i);        switch(perchar) {            case "0":                tmpnewchar = "零" + tmpnewchar;                break;            case "1":                tmpnewchar = "壹" + tmpnewchar;                break;            case "2":                tmpnewchar = "贰" + tmpnewchar;                break;            case "3":                tmpnewchar = "叁" + tmpnewchar;                break;            case "4":                tmpnewchar = "肆" + tmpnewchar;                break;            case "5":                tmpnewchar = "伍" + tmpnewchar;                break;            case "6":                tmpnewchar = "陆" + tmpnewchar;                break;            case "7":                tmpnewchar = "柒" + tmpnewchar;                break;            case "8":                tmpnewchar = "捌" + tmpnewchar;                break;            case "9":                tmpnewchar = "玖" + tmpnewchar;                break;        }        switch(part[0].length - i - 1) {            case 0:                tmpnewchar = tmpnewchar + "元";                break;            case 1:                if(perchar != 0) tmpnewchar = tmpnewchar + "拾";                break;            case 2:                if(perchar != 0) tmpnewchar = tmpnewchar + "佰";                break;            case 3:                if(perchar != 0) tmpnewchar = tmpnewchar + "仟";                break;            case 4:                tmpnewchar = tmpnewchar + "万";                break;            case 5:                if(perchar != 0) tmpnewchar = tmpnewchar + "拾";                break;            case 6:                if(perchar != 0) tmpnewchar = tmpnewchar + "佰";                break;            case 7:                if(perchar != 0) tmpnewchar = tmpnewchar + "仟";                break;            case 8:                tmpnewchar = tmpnewchar + "亿";                break;            case 9:                tmpnewchar = tmpnewchar + "拾";                break;        }        let newchar = tmpnewchar + newchar;    }    //小数点之后进行转化    if(Num.indexOf(".") != -1) {        if(part[1].length > 2) {            // alert("小数点之后只能保留两位,零碎将主动截断");            part[1] = part[1].substr(0, 2)        }        for(i = 0; i < part[1].length; i++) {            tmpnewchar = ""            perchar = part[1].charAt(i)            switch(perchar) {                case "0":                    tmpnewchar = "零" + tmpnewchar;                    break;                case "1":                    tmpnewchar = "壹" + tmpnewchar;                    break;                case "2":                    tmpnewchar = "贰" + tmpnewchar;                    break;                case "3":                    tmpnewchar = "叁" + tmpnewchar;                    break;                case "4":                    tmpnewchar = "肆" + tmpnewchar;                    break;                case "5":                    tmpnewchar = "伍" + tmpnewchar;                    break;                case "6":                    tmpnewchar = "陆" + tmpnewchar;                    break;                case "7":                    tmpnewchar = "柒" + tmpnewchar;                    break;                case "8":                    tmpnewchar = "捌" + tmpnewchar;                    break;                case "9":                    tmpnewchar = "玖" + tmpnewchar;                    break;            }            if(i == 0) tmpnewchar = tmpnewchar + "角";            if(i == 1) tmpnewchar = tmpnewchar + "分";            newchar = newchar + tmpnewchar;        }    }    //替换所有无用汉字    while(newchar.search("零零") != -1)        newchar = newchar.replace("零零", "零");    newchar = newchar.replace("零亿", "亿");    newchar = newchar.replace("亿万", "亿");    newchar = newchar.replace("零万", "万");    newchar = newchar.replace("零元", "元");    newchar = newchar.replace("零角", "");    newchar = newchar.replace("零分", "");    if(newchar.charAt(newchar.length - 1) == "元") {        newchar = newchar + "整"    }    return newchar;}