Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFile = objFSO.OpenTextFile("d:\test.txt", 1)
Do While objFile.AtEndOfStream = False
strLine = objFile.Read(5)
objFile.Skip(3)
Loop
Dim fso,myfile
Set fso=createobject("scripting.filesystemobject")
Set myfile=fso.opentextfile("c:\user.txt",1,false)
While myfile.AtEndOfStream <> True
a=myfile.ReadLine()
a1=a1+a
Wend
b=len(a1)
For i=0 to b/3-1
c=mid(a1,1+i*3,3)
msgbox c
Next
这个是我的方法。结合大家的建议。