vb.net 计算文件夹和子文件夹中的所有文件
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Counting all files in folder and subfolder
提问by Technologuy
I am using visual basic and I want to count all the files that exist in a folder and in its subfolders.. I tried this :
我正在使用visual basic，我想计算一个文件夹及其子文件夹中存在的所有文件。我试过这个：
Dim counter = My.Computer.FileSystem.GetFiles("C:\Folder")
MsgBox("number of files is " & CStr(counter.Count))
Dim counter = My.Computer.FileSystem.GetFiles("C:\Folder")
MsgBox("number of files is " & CStr(counter.Count))
but it only counts files in the C:\Folderand notin C:\Folder\Sub-Folder\AnotherSubFolderWhat should I do? Thank's for help!
但它只能算作中的文件C：\文件夹，并没有在C：\文件夹\子文件夹\ AnotherSubFolder我应该怎么办？感谢帮助！
回答by sab669
Use Directory.GetFiles()as defined here: https://msdn.microsoft.com/en-us/library/ms143316(v=vs.110).aspx
Directory.GetFiles()按此处定义使用：https: //msdn.microsoft.com/en-us/library/ms143316(v=vs.110).aspx
So you'd just use
所以你只需要使用
Dim counter As Integer = Directory.GetFiles(someString, "*.*", SearchOption.AllDirectories).Length;
MsgBox("Number of files is : " + counter)
someStringbeing the top-level directory you want to start at
someString作为您想要开始的顶级目录
"*.*"being the search pattern you want to match. This gets all files. If you wanted only text files, for example, you could do "*.txt".
"*.*"是您要匹配的搜索模式。这将获取所有文件。例如，如果您只需要文本文件，则可以执行"*.txt".
SearchOptionenum has two options: AllDirectoriesor TopDirectoryOnlyif you're onlyinterested in the exact directory passed, obviously.
SearchOptionenum 有两个选项：AllDirectories或者TopDirectoryOnly如果您只对传递的确切目录感兴趣，显然。
