<!--#include file="conn.asp" -->
<%
if not isEmpty(request.QueryString("id")) then
id=request.QueryString("id")
else
id=1
end if
Set rs = Server.CreateObject("ADODB.Recordset")
rs.Open "Select * From sppnews where id="&id, conn,3,3
rs("counter")=rs("counter")+1
rs.update
nCounter=rs("counter")
rs.close
%>
<%
Set rs = Server.CreateObject("ADODB.Recordset")
rs.Open "Select * From sppnews where id="&id, conn,3,3
%>
<html>
<head>
<title><%=title%></title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="images/spp.css" type="text/css">
<style type="text/css">
<!--
.1 {
border: 1px dotted #666666;
}
-->
</style>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<table width="74%" border="0" cellspacing="0" cellpadding="3" align="center">
<tr>
<td>
<div align="center"><font color=red>标题:</font><%=rs("title")%></div>
</td>
</tr>
<tr>
<td>
<hr width="86%" size="1" color="#660000">
</td>
</tr>
<tr>
<td>
<div align="center">日期:<font size="-2"><%=rs("time")%> </font> 该新闻已被阅读 <%=rs("counter")%>
次</div>
</td>
</tr>
<tr>
<td height="41">
<table width="400" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="2" height="6" background="image/left_1.gif"></td>
<td width="407" height="6" background="image/center_1.gif"></td>
<td width="2" height="6" background="image/right_1.gif"></td>
</tr>
<tr>
<td width="4" height="6" background="image/left_2.gif"></td>
<td><br>
<%=rs("content")%><br>
</td>
<td width="4" background="image/right_2.gif"></td>
</tr>
<tr>
<td width="4" height="6" background="image/left_3.gif"></td>
<td width="2" height="6" background="image/center_3.gif"></td>
<td width="4" height="6" background="image/right_3.gif"></td>
</tr>
</table></td>
</tr>
<tr>
<td> <hr width="86%" size="1" color="#660000"> </td>
</tr>
<tr>
<td>
<div align="center">
<input type=button onClick=window.close() value=关闭窗口 name="button">
</div>
</td>
</tr>
<tr>
<td>
<!--#include file="include/copyright.asp"-->
</td>
</tr>
</table>
</body>
</html>
主要不明白第一行的if 判断什么了?
isempty这个函数,不是很明白,书本上写的是:返回boolean值,指明变量是否初始化!不太能理解~!
第二个问题是:
rs.update的作用,难道它不是对应rs.addnew吗?可以单独使用吗???