vb.net如何操作文本文件
我的.net的System.IO中没有File和FileInfo，怎么才能添加这两个对象？ 问题点数：50、回复次数：4Top
1 楼sky9531（玩得晚,睡得晚）回复于 2005-11-08 14:23:22 得分 40
file和fileinfo是system.io名称空间下的类,应该不可能没有的,具体采用形如下面的方式使用:
Dim cc As New FileInfo("路径及文件名")
MsgBox(cc.DirectoryName) '显示文件路径,测试用
File.Copy("aa.txt", "bb.txt")
读写文件文件的示例
'写文件
Dim sw As StreamWriter = New StreamWriter("TestFile.txt")
sw.Write("This is the ")
sw.WriteLine("header for the file.")
sw.WriteLine("-------------------")
sw.Write("The date is: ")
sw.WriteLine(DateTime.Now)
sw.Close()
'读文件
Dim sr As StreamReader = New StreamReader("TestFile.txt")
Dim line As String
Do
line = sr.ReadLine()
Console.WriteLine(Line)
Loop Until line Is Nothing
sr.Close()
Catch E As Exception
' Let the user know what went wrong.
Console.WriteLine("The file could not be read:")
Console.WriteLine(E.Message)
End Try
End Sub
Top
2 楼feihu_02（飞狐http://foxstudio.51vip.cn）回复于 2005-11-08 14:54:43 得分 10
楼上已经有了示范,MSDN上也有.Top
3 楼kele2005（土坷垃）回复于 2005-11-08 16:08:30 得分 0
感谢两位的回复，我找到原因了Top
4 楼yushubin（哭树无泪）回复于 2005-12-23 16:41:40 得分 0
好的Top
