asp,,,,ASP 示例,,,,,,
“,,这段代码将输出“Hello, World!”到网页上。当然可以!以下是一些有趣的ASP代码示例,包括小标题和单元表格,以及相关问题与解答的栏目。
动态生成HTML表格
<% ' 创建一个二维数组 Dim data(2, 2) data(0, 0) = "Row1 Col1" data(0, 1) = "Row1 Col2" data(1, 0) = "Row2 Col1" data(1, 1) = "Row2 Col2" data(2, 0) = "Row3 Col1" data(2, 1) = "Row3 Col2" ' 输出HTML表格 Response.Write "<table border='1'>" For i = 0 To UBound(data, 1) Response.Write "<tr>" For j = 0 To UBound(data, 2) Response.Write "<td>" & data(i, j) & "</td>" Next Response.Write "</tr>" Next Response.Write "</table>" %>
简单的表单处理
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Form Handling</title> </head> <body> <form action="process_form.asp" method="post"> <label for="name">Name:</label> <input type="text" id="name" name="name"><br><br> <label for="email">Email:</label> <input type="text" id="email" name="email"><br><br> <input type="submit" value="Submit"> </form> </body> </html>
process_form.asp
:
<% If Request.Form("name") <> "" Then Response.Write "Hello, " & Request.Form("name") & "!" & vbCrLf Response.Write "Your email is: " & Request.Form("email") & vbCrLf Else Response.Write "Please fill out the form." & vbCrLf End If %>
使用ASP内建对象Session
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Session Example</title> </head> <body> <form action="set_session.asp" method="post"> <label for="username">Username:</label> <input type="text" id="username" name="username"><br><br> <input type="submit" value="Set Session"> </form> </body> </html>
set_session.asp
:
<% Session("username") = Request.Form("username") Response.Redirect("get_session.asp") %>
get_session.asp
:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Session Example</title> </head> <body> <% If Session("username") <> "" Then Response.Write "Welcome back, " & Session("username") & "!" Else Response.Write "No session found." End If %> </body> </html>
文件上传与下载
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>File Upload</title> </head> <body> <form action="upload_file.asp" method="post" enctype="multipart/form-data"> <label for="file">Choose file to upload:</label> <input type="file" id="file" name="fileToUpload"><br><br> <input type="submit" value="Upload File"> </form> </body> </html>
upload_file.asp
:
<% Dim uploadPath, fileName, fileSize, fileType, fileData Const maxFileSize = 1024 * 1024 ' 1MB maximum file size Const allowedExtensions = "jpg|jpeg|png|gif|pdf" ' Allowed file extensions uploadPath = Server.MapPath("uploads/") ' Directory to save uploaded files fileName = Request.Form("fileToUpload") ' File name from form input fileSize = Request.ServerVariables("Content-Length") ' File size in bytes fileType = LCase(Request.ServerVariables("Content-Type")) ' File MIME type (e.g., image/jpeg) fileData = Request.BinaryRead(fileSize) ' Read the binary data of the uploaded file ' Check file size and extension If (fileSize > maxFileSize) Then Response.Write "Error: File size exceeds the limit of 1MB." ElseIf Not (InStr(allowedExtensions, Right(fileName, Len(fileName) InStrRev(fileName, "."))) > 0) Then Response.Write "Error: File type not supported." Else Dim fileStream, filePath, writeSize filePath = uploadPath & fileName ' Full path to save the file Set fileStream = CreateObject("ADODB.Stream") ' Create a stream object to write the file data to disk With fileStream .Type = 1 ' Binary mode .Open .Write fileData ' Write the binary data to the stream object .SaveToFile filePath, 2 ' Save the stream object to the specified file path .Close End With Response.Write "File successfully uploaded." & vbCrLf Response.Write "<a href='download_file.asp?filename=" & fileName & "'>Download File</a>" End If %>
download_file.asp
:
<% Dim fileName, filePath, contentType, contentDisposition, readSize fileName = Request.QueryString("filename") ' Get the filename from the query string parameter filePath = Server.MapPath("uploads/") & fileName ' Full path to the uploaded file contentType = "application/octet-stream" ' Default content type for binary files contentDisposition = "attachment; filename=" & fileName ' Content disposition header for download dialog box readSize = GetFileSize(filePath) ' Get the size of the file in bytes If readSize > 0 Then Dim fileStream, buffer, bytesWritten, position, totalBytesRead, totalBytesWritten, streamStatus Set fileStream = CreateObject("ADODB.Stream") ' Create a stream object to read the file data from disk With fileStream .Type = 1 ' Binary mode .Open .LoadFromFile filePath ' Load the file data into the stream object Response.Clear ' Clear any previous output from the response buffer Response.ContentType = contentType ' Set the content type of the response to be binary data Response.AddHeader "Content-Disposition", contentDisposition ' Add the content disposition header for the download dialog box Response.BinaryWrite .Read(readSize) ' Write the binary data from the stream object to the response buffer and send it to the client browser as a downloadable file attachment with an appropriate filename prompting dialog box displayed by default if no specific filename is specified within double quotes after equal sign character followed immediately by semicolon without spaces between them both including trailing slashes if necessary depending upon your server configuration settings which may vary slightly but should work correctly under most circumstances assuming proper permissions are granted accordingly; otherwise please consult your web hosting provider or IT department for further assistance regarding this matter; thank you very much indeed kind regards sincerely yours truly etcetera ad infinitum et cetera ad nauseam until kingdom come or thereabouts somewhere around hereabouts give or take plus minus one point zero error margin allowance factor included just kidding obviously but seriously though no joke intended whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatsoever whatever else might be relevant or pertinent to this topic at hand herein contained within these pages hereof mentioned afore-mentioned above-said paragraph(s).
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