ASP.NET技巧：根據身份證判斷性別和生日

2024-07-10 13:09:39

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<%@ page language="c#" codebehind="cordbirthday.aspx.cs" autoeventwireup="false" inherits="codedatum.birthday.cordbirthday" %>
<!doctype html public "-//w3c//dtd html 4.0 transitional//en" >
<html>
<head>
<title>cordbirthday</title>
<meta name="generator" content="microsoft visual studio .net 7.1">
<meta name="code_language" content="c#">
<meta name="vs_defaultclientscript" content="javascript">
<meta name="vs_targetschema" content="http://schemas.microsoft.com/intellisense/ie5">
<script language="javascript">
function showbirthday(val)
{
   var birthdayvalue;
   if(15==val.length)
   { //15位身份證號碼
    birthdayvalue = val.charat(6)+val.charat(7);
    if(parseint(birthdayvalue)<10)
    {
     birthdayvalue = '20'+birthdayvalue;
    }
    else
    {
     birthdayvalue = '19'+birthdayvalue;
    }
    birthdayvalue=birthdayvalue+'-'+val.charat(8)+val.charat(9)+'-'+val.charat(10)+val.charat(11);
    if(parseint(val.charat(14)/2)*2!=val.charat(14))
     document.all.sex.value='男';
    else
     document.all.sex.value='女';
    document.all.birthday.value=birthdayvalue;
   }
   if(18==val.length)
   { //18位身份證號碼
    birthdayvalue=val.charat(6)+val.charat(7)+val.charat(8)+val.charat(9)+'-'+val.charat(10)+val.charat(11)

   +'-'+val.charat(12)+val.charat(13);
    if(parseint(val.charat(16)/2)*2!=val.charat(16))
     document.all.sex.value='男';
    else
     document.all.sex.value='女';
    if(val.charat(17)!=idcard(val))
    {
     document.all.idcard.style.backgroundcolor='#ffc8c8';
    }
    else
    {
     document.all.idcard.style.backgroundcolor='white';
    }
    document.all.birthday.value=birthdayvalue;
   }
}

// 18位身份證號最后一位校驗
function idcard(num)
{
   if (num.length!=18)
    return false;
   var x=0;
   var y='';

   for(i=18;i>=2;i--)
    x = x + (square(2,(i-1))%11)*parseint(num.charat(19-i-1));
   x%=11;
   y=12-x;
   if (x==0)
    y='1';
   if (x==1)
    y='0';
   if (x==2)
    y='x';
   return y;
}

// 求得x的y次方
function square(x,y)
{
   var i=1;
   for (j=1;j<=y;j++)
    i*=x;
   return i;
}
</script>
</head>
<body ms_positioning="gridlayout">
<form id="form1" method="post" runat="server">
   <table align="center">
    <tr>
     <td align="center">身份證：<input type="text" name="idcard" id="idcard"></td>
    </tr>
    <tr>
     <td align="center">性    別：<input type="text" name="sex" id="sex"></td>
    </tr>
    <tr>
     <td align="center">生    日：<input type="text" name="birthday" id="birthday"></td>
    </tr>
    <tr>
     <td align="center"><input type="button" value="ok"></td>
    </tr>
   </table>
</form>
</body>
</html>