在asp.net中操作文件的例子

1、寫文件
writefile.aspx

<%@ import namespace="system.io" %> '引入所需的namespace
<%
response.write("writing the content into text file in asp.net <br>")
dim strwriterobj as streamwriter '聲明一個streamwriter對象
strwriterobj= file.createtext("c:/aspnet.txt") '新建一個文本文件，賦值給streamwriter對象
strwriterobj.writeline( "welcome to wonderfull world of asp.net programming" )
'向文件中寫內容
strwriterobj.close '關閉對象
response.write("done with the creation of text file and writing content into it")
%>

2、讀文件
readfile.aspx

<%@ import namespace="system.io" %>
<%
response.write("reading the content from the text file aspnet.txt <br>")
dim streamreaderobj as streamreader '聲明一個streamreader對象
dim filecont as string '聲明一個變量保存讀出的內容
streamreaderobj = file.opentext( "c:/aspnet.txt" ) '打開文件賦值到streamreader對象
do '按行循環讀取文件內容
filecont = streamreaderobj.readline()
response.write( filecont & "<br>" )
loop until filecont = ""
streamreaderobj.close '關閉streamreader對象
response.write("<br> done with reading the content from the file aspnet.txt")
%>

3、刪除文件
filedelete.aspx

<%@ import namespace="system.io" %>
<%
file.delete("c:/aspnet.txt" ) '刪除文件
response.write("the file aspnet is deleted successfully !!!" )
%>