例子，js实现数字金额的格式化。
<mce:script language="javascript">
<!--
function formatNum(num,n)
{//参数说明：num 要格式化的数字 n 保留小数位
num = String(num.toFixed(n));
var re = /(-?/d+)(/d{3})/;
while(re.test(num)) num = num.replace(re,"$1,$2")
return num;
}
alert(formatNum(1234005651.789,2));
// --></mce:script>
js 金额格式化
/*数字千分符*/
function rendererZhMoney(v) {
if(isNaN(v)){
return v;
}
v = (Math.round((v - 0) * 100)) / 100;
v = (v == Math.floor(v)) ? v + ".00" : ((v * 10 == Math.floor(v * 10)) ? v
+ "0" : v);
v = String(v);
var ps = v.split('.');
var whole = ps[0];
var sub = ps[1] ? '.' + ps[1] : '.00';
var r = /(d+)(d{3})/;
while (r.test(whole)) {
whole = whole.replace(r, '$1' + ',' + '$2');
}
v = whole + sub;
return v;
}
/*转为以万为单位*/
function rendererZhMoneyWan(v) {
if(isNaN(v)){
return v;
}
v = v*0.0001;//10000;
v = formatFloat(v,0);//parseInt(v);
rendererZhMoney(v);
return v;
}
/*转换为中文大写金额*/
function toBigMoney(value){
var intFen,i;
var strArr,strCheck,strFen,strDW,strNum,strBig,strNow;
var isFu = false; //是否为负数
if(value.trim==""){
return "零";
}
strCheck = value+".";
strArr = strCheck.split(".");
strCheck = strArr[0];
var len = strCheck.length ;
var valueFunc = value+""; //
if(len > 12){
Ext.MessageBox.alert("提示","数据"+value+"过大，无法处理！");
return "";
}
try{
i = 0;
strBig = "";
if(valueFunc.indexOf("-") != -1){ //如果为负数
isFu = true;
valueFunc = valueFunc.substring(1,valueFunc.length);
value = valueFunc;
}
var s00="00";
var svalue = value+"";
var ipos = svalue.indexOf(".") ;
var iiLen = svalue.length;
if(ipos<0){
strFen = svalue+"00";
}else if(ipos==iiLen-2){
strFen = svalue.substring(0,iiLen-2)+svalue.substring(iiLen-1,iiLen)+"0";
}else if(ipos==iiLen-3){
strFen = svalue.substring(0,iiLen-3)+svalue.substring(iiLen-2,iiLen);
}else{
strFen = svalue.substring(0,ipos)+svalue.substring(ipos+1,ipos+3);
}
intFen = strFen.length;
strArr = strFen.split("");
while(intFen!=0){
i = i+1;
switch(i){
case 1:strDW = "分";break;
case 2:strDW = "角";break;
case 3:strDW = "元";break;
case 4:strDW = "拾";break;
case 5:strDW = "佰";break;
case 6:strDW = "仟";break;
case 7:strDW = "万";break;
case 8:strDW = "拾";break;
case 9:strDW = "佰";break;
case 10:strDW = "仟";break;
case 11:strDW = "亿";break;
case 12:strDW = "拾";break;
case 13:strDW = "佰";break;
case 14:strDW = "仟";break;
}
switch (strArr[intFen-1]){
case "1":strNum = "壹";break;
case "2":strNum = "贰";break;
case "3":strNum = "叁";break;
case "4":strNum = "肆";break;
case "5":strNum = "伍";break;
case "6":strNum = "陆";break;
case "7":strNum = "柒";break;
case "8":strNum = "捌";break;
case "9":strNum = "玖";break;
case "0":strNum = "零";break;
}
strNow = strBig.split("");
if((i==1)&&(strArr[intFen-1]=="0")){
strBig = strBig+"整" ;
} else if((i==2)&&(strArr[intFen-1]=="0")){
if(strBig!="整")
strBig = "零"+strBig;
}else if((i==3)&&(strArr[intFen-1]=="0")){
strBig = "元"+strBig;
}else if((i<7)&&(i>3)&&(strArr[intFen-1]=="0")&&(strNow[0]!="零")&&(strNow[0]!="元")){
strBig = "零"+strBig;
}else if((i<7)&&(i>3)&&(strArr[intFen-1]=="0")&&(strNow[0]=="零")){}
else if((i<7)&&(i>3)&&(strArr[intFen-1]=="0")&&(strNow[0]=="元")){}
else if((i==7)&&(strArr[intFen-1]=="0")){
strBig ="万"+strBig;
}else if((i<11)&&(i>7)&&(strArr[intFen-1]=="0")&&(strNow[0]!="零")&&(strNow[0]!="万")){
strBig = "零"+strBig;
}else if((i<11)&&(i>7)&&(strArr[intFen-1]=="0")&&(strNow[0]=="万")){}
else if((i<11)&&(i>7)&&(strArr[intFen-1]=="0")&&(strNow[0]=="零")){}
else if((i<11)&&(i>8)&&(strArr[intFen-1]!="0")&&(strNow[0]=="万")&&(strNow[2]=="仟")){
strBig = strNum+strDW+"万零"+strBig.substring(1,strBig.length);
}else if(i==11){
if((strArr[intFen-1]=="0")&&(strNow[0]=="万")&&(strNow[2]=="仟")){
strBig ="亿"+"零"+strBig.substring(1,strBig.length);
}else if((strArr[intFen-1]=="0")&&(strNow[0]=="万")&&(strNow[2]!="仟")){
strBig ="亿"+strBig.substring(1,strBig.length);
}else if((strNow[0]=="万")&&(strNow[2]=="仟")){
strBig = strNum+strDW+"零"+strBig.substring(1,strBig.length);
}else if((strNow[0]=="万")&&(strNow[2]!="仟")){
strBig = strNum+strDW+strBig.substring(1,strBig.length);
}else {
strBig = strNum+strDW+strBig;
}
}else if((i<15)&&(i>11)&&(strArr[intFen-1]=="0")&&(strNow[0]!="零")&&(strNow[0]!="亿")){
strBig = "零"+strBig;
}else if((i<15)&&(i>11)&&(strArr[intFen-1]=="0")&&(strNow[0]=="亿")){
}else if((i<15)&&(i>11)&&(strArr[intFen-1]=="0")&&(strNow[0]=="零")){
}else if((i<15)&&(i>11)&&(strArr[intFen-1]!="0")&&(strNow[0]=="零")&&(strNow[1]=="亿")&&(strNow[3]!="仟")){
strBig = strNum+strDW+strBig.substring(1,strBig.length);
}else if((i<15)&&(i>11)&&(strArr[intFen-1]!="0")&&(strNow[0]=="零")&&(strNow[1]=="亿")&&(strNow[3]=="仟")){
strBig = strNum+strDW+"亿零"+strBig.substring(2,strBig.length);
}else{
strBig = strNum+strDW+strBig;
}
strFen = strFen.substring(0,intFen-1);
intFen = strFen.length;
strArr = strFen.split("");
}
if(strBig.substring(0,1)=="元")strBig=strBig.substring(1)
if(strBig.substring(0,1)=="零")strBig=strBig.substring(1)
if(strBig=="整") {strBig="零元整";}
if(true == isFu){ //如果为负数
strBig = "负"+strBig;
}
return strBig;
}catch(err){
alert(err);
return "";
}
}