If FileSys.DirectoryExists(ProjectPath & "Attachments" ) Then '如果目录C:\MyFolder存在
Else
FileSys.CreateDirectory(ProjectPath & "Attachments" )
End If
dim a as string = "张三"
dim b as string = "工号"
dim c as string = (a & b)
If FileSys.DirectoryExists(ProjectPath & "Attachments" / c) Then '如果目录C:\MyFolder存在
Else
FileSys.CreateDirectory(ProjectPath & "Attachments" / c)
End If
这个为啥会出错?该如何修改?