一些Asp技巧和实用解决方法

 
 
一些ASP技巧和实用解决方法
随机数:
<%randomize%>
<%=(int(rnd()*n)+1)%>
查询数据时得到的记录关键字用红色显示：
<% =replace(RS("字段X"),searchname,"<font color=#FF0000>" & searchname & "</font>") %>
通过asp的手段来检查来访者是否用了代理
<% if Request.ServerVariables("HTTP_X_FORWARDED_FOR")<>"" then
response.write "<font color=#FF0000>您通过了代理服务器，"& _
"真实的IP为"&Request.ServerVariables("HTTP_X_FORWARDED_FOR")
end if
%> 
判断上一页的来源
request.servervariables("HTTP_REFERER")
JavaScript: document.referrer
清除缓存，重新加载页面
<%response.expires = 0 
response.expiresabsolute = now() - 1
response.addHeader "pragma","no-cache"
response.addHeader "cache-control","private"
Response.cachecontrol = "no-cache"
%>
在下拉菜单中显示年和月
<select name="select">
<%
Dim M_Year 
Dim M_Month
Dim M_MonthJ
Dim M_TheMonth
Dim M_YM
For M_Year = 2000 To Year(Date) 
M_Month = 12 
If M_Year = Year(Date) Then 
M_Month = Month(Date) 
End If
For M_MonthJ=1 To M_Month
If M_MonthJ < 10 Then
M_TheMonth = "0" & M_MonthJ
Else
M_TheMonth = M_MonthJ
End If
M_YM = M_Year& "-" & M_TheMonth %>
<option value="<%= M_YM %>"><%= M_YM %></option>
<%
Next
Next %>
</select>
检索并删除数据库里的重复记录
conn.execute("delete from table where id not in (select distinct from table)")