我是vb.net的新手。我有很多使用vb的经验。我想知道的是如何替换文件系统对象。具体来说,我想使用文本流数组。我将如何在vb.net中编写以下内容
为了简单起见,我假设我有一个长度为1个字节的文本文件,它只是一个从0到9的重复#系列。我希望任何有1的记录转到tsout (1),2到tsout(2)等...
dim fso as new filesystemobject, tsIN as textstream, tsOut(10) as textstream
dim lineIN, i
set tsin = fso.opentextfile("C:\input.txt",forreading,false)
for i = 1 to 10
set tsout(i) = fso.createtextfile("C:\output" & i & ".txt",true)
next
do while not tsin.atendofstream
linein = mid(tsin.readline,1,1)
tsout(linein).writeline(linein)
loop
for i = 1 to 10
tsout(i).close
next
tsin.close
答案 0 :(得分:0)
使用System.IO.StreamWriter
和System.IO.StreamReader
s:
Using in As New StreamReader("C:\input.txt")
Dim out(9) As StreamWriter
For i As Integer = 0 To 9
out(i) = New StreamWriter("C:\output" & i & ".txt")
Next
While in.Position < in.Length
Dim l As Integer = Integer.Parse(in.ReadLine().Substring(1, 1))
out(l).WriteLine(l.ToString())
End while
For i As Integer = 0 To 9
out(i).Close()
out(i).Dispose()
Next
End Using
注意:这假设{/ 1}}位于文件的开头或项目范围内。