'原来用VB写的封装成dll供asp使用,后来升级到vb.net '这个是我以前写的电影站影片处理的一部份,程序挺简单的,没怎么注释,大家对付看 'program by someeyes '需要声明Imports System.IO命名空间 Public Function myFileExists(ByVal pathName As String) As String '检查文件是否存在 If File.Exists(pathName) = False Then myFileExists = "<font color=""Red"">文件丢失</font>" Else myFileExists = "<font color=""#0066ff"">文件存在</font>" End If End Function Private sub myCreatDirectory(ByVal pathName As String) '创建文件夹 Try If Directory.Exists(pathName) = False Then Directory.CreateDirectory(pathName) End If Catch e As Exception myErrMsg = myErrMsg & "创建" & pathName & "文件夹的时候出现一个意外的错误." myErrMsg = myErrMsg & e.ToString HttpContext.Current.Response.Write("程序遇到一个意外的错误,详细情况请查看日志文件!<br>") End Try End Sub Private Sub myDelDirectory(ByVal pathName As String) '删除文件夹 Try If Directory.Exists(pathName) = True Then Directory.Delete(pathName) End If Catch e As Exception myErrMsg = myErrMsg & "删除" & pathName & "文件夹的时候出现一个意外的错误." myErrMsg = myErrMsg & e.ToString HttpContext.Current.Response.Write("程序遇到一个意外的错误,详细情况请查看日志文件!<br>") End Try End Sub Private Sub myMoveFile(ByVal pathName As String, ByVal target As String) '移动文件夹 Try File.Move(pathName, target) Catch e As Exception myErrMsg = myErrMsg & "从" & pathName & "移动文件到" & target & "的时候出现一个意外的错误." myErrMsg = myErrMsg & e.ToString HttpContext.Current.Response.Write("程序遇到一个意外的错误,详细情况请查看日志文件!<br>") End Try End Sub Private Sub myCopyFile(ByVal fsource As String, ByVal fdestination As String) Try File.Copy(fsource, fdestination, False) Catch e As Exception myErrMsg = myErrMsg & "从" & fsource & "复制文件到" & fdestination & "的时候出现一个意外的错误." myErrMsg = myErrMsg & e.ToString HttpContext.Current.Response.Write("程序遇到一个意外的错误,详细情况请查看日志文件!<br>") End Try End Sub
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本文标题:自己写的文件操作的function和Sub vb.net dll
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