如何做一個文本搜索？

來源：本站原創(chuàng)|時間：2020-01-11|欄目：編程問答|點擊：次

<%
head = "搜索"
SearchString = Request("SearchString")
count=0

Function UnMapPath( Path )
UnMapPath = Replace(Mid(Path, Len(Server.MapPath("/")) + 1), "\", "/")<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

' 把當(dāng)前目錄的實際路徑轉(zhuǎn)換為虛擬路徑.
End Function

Function SearchFile( f, s, title )
Set fo = fs.OpenTextFile(f)
content = fo.ReadAll

' 把全部文本讀到content.
fo.Close
SearchFile = InStr(1, content, S, vbTextCompare) > 0

' 從第一個字符開始檢查content里面是否有S.
If SearchFile Then

' 如果有,則提出文件title存入變量.
pos1 = InStr(1, content, "<title>", vbTextCompare)
pos2 = InStr(1, content, "</title>", vbTextCompare)
title = ""
If pos1 > 0 And pos2 > 0 Then

' 取title標(biāo)記中間的字符.
title = Mid( content, pos1 + 7, pos2 - pos1 - 7 )
End If
End If
End Function

Function FileLink( f, title )
vPath = UnMapPath( f.Path )

' 獲取路徑.
If title = "" Then title = f.Name

' 做個鏈接.
FileLink = "<A HREF=""" & vPath & """>" & title & "</A>"
FileLink = "<UL>·" & FileLink & "</UL>"
End Function

Sub SearchFolder( fd, s )
found = False
For each f In fd.Files
pos = InStrRev(f.Path, "." )
If pos > 0 Then
ext = Mid(f.Path, pos + 1 )
Else
ext = ""
End If
If LCase(ext) = "htm" Then

' 顯示擴(kuò)展名字為HTM的文件.
If SearchFile( f, s, title ) Then
Response.Write FileLink(f, title)
count=count+1
Response.Write cstr(count)
End If
End If
Next

For each sfd In fd.SubFolders
SearchFolder sfd, s
Next
End Sub
%>
<html>

<head>
<meta http-equiv="Content-Type"
content="text/html; charset=gb_2312-80">
<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title><%=head%></title>
</head>

<body>

<h1>星河影動之無敵文本搜索<%=head%></h1>

<hr>

<form action="search.asp" method="Get">
<p>請輸入想要搜索的內(nèi)容： <input type="text"
size="20" name="SearchString" value="<%=SearchString%>"> <input
type="submit" value="搜索"> </p>
</form>
<%
Set fs = Server.CreateObject("Scripting.FileSystemObject")
Set fd = fs.GetFolder( Server.MapPath("/") )

' 設(shè)置開始搜索的路徑.

If SearchString <> "" Then
Response.Write "<H2>搜索<font color=red>" & SearchString & "</font>結(jié)果如下：</H2><P>"
SearchFolder fd,SearchString
End If
%>
<hr>
</body></html>

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