为什么我这段asp代码有时能运行有时不能运行
<% Option Explicit %><html>
<head>
<title> 利用Select语句查询记录示例 </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<body>
<h2 align = "center">网络导航</h2>
<%
Dim db
Set db = server.CreateObject("ADODB.Connection")
db.open"wwwlink"
Dim strsq1,rs
strsq1 = "select * from link Order By link_id desc"
Set rs = db.execute(strsq1)
%>
<center>
<table border = "1">
<%
Do While Not rs.Eof
%>
<tr>
<td><%=rs("name")%></td>
<td><a href = "http://<%=rs("URL")%>" target = "_blank"><%=rs("URL")%></a>
</td>
<td><%=rs("intro")%></td>
<td><%=rs("submit_date")%></td>
</tr>
<%
rs.movenext
Loop
%>
</table>
</center>
</body>
</html>