[原创] VBS脚本fso shell文件处理效率对比

jyswjjgdwtdtj

同样遍历‪C:\Program Files (x86)
并生成html文档
1、fso

begin_time = Timer
set fso=		createobject("scripting.filesystemobject")
foldername="‪C:\Program Files (x86)"
set nowfolder=fso.getfolder(foldername)
filetree nowfolder
sub filetree(fdobject)
	set files=fdobject.files
	set folders=fdobject.subfolders
	for each file in files
		wscript.echo file.path 
	next
	for each folder in folders
		wscript.echo folder.path
		filetree folder
	next
end sub
wscript.echo Timer-begin_timeCOPY

消耗22.0625秒(更少一些)

---

2.shell

begin_time = Timer、
set shell=		createobject("shell.application")
foldername=‪"C:\Program Files (x86)"
set nowfolder=shell.namespace(foldername)
filetree nowfolder
sub filetree(fdobject)
	set items=fdobject.items
	for each item in items
		if item.isfolder then
			wscript.echo item.path
			filetree item.getfolder
		else
			wscript.echo file.path
		end if
	next
end sub
wscript.echo Timer-begin_timeCOPY

消耗12.64秒(如果用“滤镜”的话估计还能快)

---

显然，shell快太多了

523066680

我就看看大佬发高性能代码，不敢说话  

jyswjjgdwtdtj

有没有效率更高的遍历方法呢？要是能把所有文件列举出来的

老刘1号

回复 4# jyswjjgdwtdtj


    随便换个编译型语言效率就可以薄纱vbs

523066680

使用 dir /s /b 重定向导出(或者管道？)然后用文本处理的方式去转换非常高效
用 cmd /U /C dir /s /b  还能获得Unicode编码的文件清单，完美。

523066680

我就没有这些烦恼（逃

jyswjjgdwtdtj

抄了个wmi的

Sub filetree(strFolder)
	Set objWMIService = GetObject("winmgmts:\\.\root\cimv2")
	Set FileList = objWMIService.ExecQuery("ASSOCIATORS OF {Win32_Directory.Name='" & strFolder & "'} Where ResultClass = CIM_DataFile")
	For Each objFile In FileList
		WScript.Echo objFile.name
	Next
	Set FolderList = objWMIService.ExecQuery("Associators of {Win32_Directory.Name='" & strFolder & "'}Where AssocClass = Win32_Subdirectory resultRole = PartComponent")
	For Each objFolder In FolderList
		filetree objFolder.name
	Next
End Sub
filetree "C:\Program Files (x86)"COPY