JS实现将人民币金额转换为大写的示例代码_javascript技巧

复制代码 代码如下:

//人民币金额转大写程序 JavaScript版    
//CopyRight Bardo QI    

function numToCny(num){    
    var capUnit = ['万','亿','万','圆',''];    
    var capDigit = { 2:['角','分',''], 4:['仟','佰','拾','']};    
    var capNum=['零','壹','贰','叁','肆','伍','陆','柒','捌','玖'];    
    if (((num.toString()).indexOf('.') > 16)||(isNaN(num)))     
        return '';    
    num = (Math.round(num*100)/100).toString();    
    num =((Math.pow(10,19-num.length)).toString()).substring(1) num;    
    var i,ret,j,nodeNum,k,subret,len,subChr,CurChr=[];    
    for (i=0,ret='';i<5;i ,j=i*4 Math.floor(i/4)){    
        nodeNum=num.substring(j,j 4);    
        for(k=0,subret='',len=nodeNum.length;((k            CurChr[k%2] = capNum[nodeNum.charAt(k)] ((nodeNum.charAt(k)==0)?'':capDigit[len][k]);    
            if (!((CurChr[0]==CurChr[1]) && (CurChr[0]==capNum[0])))    
                if(!((CurChr[k%2] == capNum[0]) && (subret=='') && (ret=='')))    
                    subret = CurChr[k%2];    
        }    
        subChr = subret ((subret=='')?'':capUnit[i]);    
        if(!((subChr == capNum[0]) && (ret=='')))    
            ret = subChr;    
    }    
    ret=(ret=='')? capNum[0] capUnit[3]: ret;      
    return ret;    
}