js function that converts rmb digital money into Chinese money_javascript skills

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The code is as follows:

function ChangeRMBToCH(Num)
{
for(i =Num.length-1;i>=0;i--)
{
Num = Num.replace(",","")//Replace the "," in tomoney()
Num = Num.replace(" ","")//Replace the spaces in tomoney()
}
Num = Num.replace("￥","")//Replace the possible ￥ characters
if(isNaN(Num))
{ //Verify whether the entered characters are numbers
alert("Please check whether the lowercase amount is correct");
return "";
}
//---After the character processing is completed, the conversion begins. The conversion uses the front and back parts to convert separately---//
part = String(Num).split(".");
newchar = "" ;
//Convert before the decimal point
for(i=part[0].length-1;i>=0;i--)
{
if(part[0].length > 10){ alert("The number of digits is too large to be calculated");return "";}//If the quantity exceeds one hundred million units, prompt
tmpnewchar = ""
perchar = part[0]. charAt(i);
switch(perchar)
{
case "0": tmpnewchar="zero" tmpnewchar ;break;
case "1": tmpnewchar="one" 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="Lu" 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 "十" ;break;
case 2: if(perchar!=0)tmpnewchar= tmpnewchar "䰰" ;break;
case 3: if(perchar!=0)tmpnewchar= tmpnewchar "佟" ;break;
case 4: tmpnewchar= tmpnewchar "Ten thousand" ;break;
case 5: if(perchar!=0)tmpnewchar= tmpnewchar "十" ;break;
case 6: if(perchar!=0)tmpnewchar= tmpnewchar "hundred" ;break;
case 7: if(perchar!=0)tmpnewchar= tmpnewchar "仟" ;break;
case 8: tmpnewchar= tmpnewchar "billion" ;break;
case 9: tmpnewchar= tmpnewchar "十" ; break;
}
newchar = tmpnewchar newchar;
}
//Convert after the decimal point
if(Num.indexOf(".")!=-1)
{
if(part[1].length > 2)
{
alert("Only two digits can be left after the decimal point, the system will automatically truncate");
part[1] = part[ 1].substr(0,2)
}
for(i=0;i{
tmpnewchar = ""
perchar = part [1].charAt(i)
switch(perchar)
{
case "0": tmpnewchar="zero" tmpnewchar ;break;
case "1": tmpnewchar="one" 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="Lu" 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 "angle";
if(i==1)tmpnewchar = tmpnewchar "point";
newchar = newchar tmpnewchar;
}
}
if(newchar. search("fen") != -1)
{
newchar = newchar.replace("zero angle", "zero");
}
//Replace all useless Chinese characters
while(newchar.search("zero zero") != -1)
newchar = newchar.replace("zero zero", "zero");
newchar = newchar.replace("zero billion", " Billion");
newchar = newchar.replace("Billion", "Billion");
newchar = newchar.replace("Zero Thousand", "Ten Thousand");
newchar = newchar.replace ("zero yuan", "yuan");
newchar = newchar.replace("zero cent", "");
newchar = newchar.replace("zero cent", "");
if (newchar.charAt(newchar.length-1) == "元" || newchar.charAt(newchar.length-1) == "angle")
newchar = newchar "whole";
return newchar ;
}

<script> alert(ChangeRMBToCH("1680760.86")); function ChangeRMBToCH(Num) { for(i=Num.length-1;i>=0;i--) { Num = Num.replace(",","")//替换tomoney()中的"," Num = Num.replace(" ","")//替换tomoney()中的空格 } Num = Num.replace("￥","")//替换掉可能出现的￥字符 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，开始转换，转换采用前后两部分分别转换---// part = String(Num).split("."); newchar = ""; //小数点前进行转化 for(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 tmpnewchar = "" 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; } 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,系统将自动截段"); 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; } } if(newchar.search("分") != -1) { newchar = newchar.replace("零角", "零"); } //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.charAt(newchar.length-1) == "角") newchar = newchar+"整"; return newchar; } </script>