人民币大小写转换

<html> 
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
function change(num)
{    if(!/^[-+]?([0-9]+)([.]?[0-9]*)([eE]?[1-9]*)$/.test(num)){alert( "请输入阿拉伯数字!");num="";}
    var   AA   =   new   Array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");   
    var   BBB   =   new   Array("圆","拾","佰","仟","萬","拾","佰","仟","億","拾","佰","仟");
    var   CC   =   new   Array("角","分","厘","钱","毫");   
    var   strnum=num;
    if(strnum.indexOf(".")>0)
    {
        var   strzs=strnum.slice(0,strnum.indexOf("."));
        var   strxs=strnum.slice(strnum.indexOf(".")+1,strnum.length);
    }
    else
    {
        var strzs=strnum;
        var strxs="";
    }    
    if(strzs.length>12){alert("你输入的金额超过了仟亿!请重新输入!"); strzs="";}
    var   bb=new Array();
    var   dd=new Array();
    var   tt=new Array();
    d="";
    f="";
    x="啊";
//整数部分
    for (i=strzs.length-1;i>=0;i--)
    {
        bb[i]=strzs.slice(i,i+1);    
        switch(bb[i])
        {    
            case "0" : bb[i]=AA[0];break;
            case "1" : bb[i]=AA[1];break;
            case "2" : bb[i]=AA[2];break;
            case "3" : bb[i]=AA[3];break;
            case "4" : bb[i]=AA[4];break;
            case "5" : bb[i]=AA[5];break;
            case "6" : bb[i]=AA[6];break;
            case "7" : bb[i]=AA[7];break;
            case "8" : bb[i]=AA[8];break;
            case "9" : bb[i]=AA[9];break;                
        }    
        bb[i]=bb[i]+BBB[strzs.length-i-1];
        d=bb[i]+d;
    }
    for(i=0;i<=d.length;i++)
    {    if(d.slice(i,i+1)!="零")
        {}
        else
        {
        if(d.slice(i+1,i+2)=="萬" || d.slice(i+1,i+2)=="億" || d.slice(i+1,i+2)=="圆")
        {d=d.slice(0,i)+x+d.slice(i+1);}
        else if(i+3<d.length && d.slice(i+2,i+3)=="零")
                {d=d.slice(0,i)+x+x+d.slice(i+2);}
              else
                  {d=d.slice(0,i+1)+x+d.slice(i+2);}
                
                }
    }
    d=d.replace(/啊/g,"")
    if(d.indexOf("億萬")>0)
    {d=d.replace(/萬/g,"")}
    //alert(d);
//小数部分
    for(i=0;i<strxs.length && i<5;i++)
        {
            dd[i]=strxs.slice(i,i+1);    
        switch(dd[i])
        {    
            case "0" : dd[i]=AA[0];break;
            case "1" : dd[i]=AA[1];break;
            case "2" : dd[i]=AA[2];break;
            case "3" : dd[i]=AA[3];break;
            case "4" : dd[i]=AA[4];break;
            case "5" : dd[i]=AA[5];break;
            case "6" : dd[i]=AA[6];break;
            case "7" : dd[i]=AA[7];break;
            case "8" : dd[i]=AA[8];break;
            case "9" : dd[i]=AA[9];break;                
        }
                f=f+dd[i]+CC[i];
        }    
        
        for(i=0;i<=f.length;i++)
        {    if(f.slice(i,i+1)!="零")
            {}
            else
            {      if(i+3<=10 && f.slice(i+2,i+3)=="零")
                    {f=f.slice(0,i)+x+x+f.slice(i+2);}
                  else
                    {f=f.slice(0,i+1)+x+f.slice(i+2);}
            }
        }
    f=f.replace(/啊/g,"")    
    dxnum=d+f;
    if(strxs==""&&num!="")
    {
    dxnum=d+"整";
    }
    //alert(dxnum);
    if(dxnum.slice(0,i)=="零")
    {dxnum=dxnum.slice(i);}
    if(dxnum.slice(dxnum.length-1)=="零")
    {dxnum=dxnum.slice(0,dxnum.length-1);}
    if(dxnum.indexOf("億")==0)
    {dxnum=dxnum.replace(/億/i,"")}
    if(dxnum.indexOf("萬")==0)
    {dxnum=dxnum.replace(/萬/i,"")}    
    if(dxnum.slice(0,i)=="零")
    {dxnum=dxnum.slice(i);}
//结果
return(dxnum);    
}
function bian()
{
    document.all.form1.textfield2.value=change(document.all.form1.textfield.value);
}
</script>
</head>

<body >
<form id="form1" name="form1" method="post" action="">
    <p>
      最大转化金额:<input type="text" name="zuida" value="999999999999.99999" disabled="disabled">
      </p>
      <p>
    <input type="text" name="textfield" style="width:150px;" onblur="bian();" />
    </p>
      <p>
      <input type="button" value="转变为大写" onclick="bian();" />
      </p>
      <p>
    <input type="text" name="textfield2" style="width:500px;" />
  </p>
  
</form>
</body>
</html>

 

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