JS实现数字转换为货币汉字大写数字的方法详解

源：http://blog.csdn.net/REBELASDF/article/details/5874190

评：

    function Chinese(num){    
        if(!/^/d*(/./d*)?$/.test(num))throw(new Error(-1, "Number is wrong!"));    
        var AA = new Array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");    
        var BB = new Array("","拾","佰","仟","萬","億","圆","");    
        var CC = new Array("角", "分", "厘");    
        var a = (""+ num).replace(/(^0*)/g, "").split("."), k = 0, re = "";    
        for(var i=a[0].length-1; i>=0; i--){    
            switch(k){    
                case 0 : re = BB[7] + re; break;    
                case 4 : if(!new RegExp("0{4}//d{"+ (a[0].length-i-1) +"}$").test(a[0]))    
                             re = BB[4] + re; break;    
                case 8 : re = BB[5] + re; BB[7] = BB[5]; k = 0; break;    
            }    
            if(k%4 == 2 && a[0].charAt(i)=="0" && a[0].charAt(i+2) != "0") re = AA[0] + re;    
            if(a[0].charAt(i) != 0) re = AA[a[0].charAt(i)] + BB[k%4] + re; k++;    
        }    
        if(a.length>1){    
            re += BB[6];    
            for(var i=0; i<a[1].length; i++){    
                re += AA[a[1].charAt(i)] + CC[i];    
                if(i==2) break;    
            }  
            if(a[1].charAt(0)=="0" && a[1].charAt(1)=="0"){ 
                re+="元整"; 
            }   
        }else{ 
            re+="元整"; 
        }    
        return re;    
    }