一、删除文件夹及其下所有子目录和文件(目录树)
include masm32rt.inc
二、从文件说明符中获取文件名
方法一:用Windows API函数——PathFindFileName
原型:PTSTR PathFindFileName( __in PTSTR pPath);
详见:http://msdn.microsoft.com/en-us/library/windows/desktop/bb773589(v=vs.85).aspx
方法二:
;data
string1 db "C:\Windows\system32\calc.exe",0
(...)
;proc
ExtractFileName proc lpPath: DWORD
mov esi, lpPath
petla:
mov al, [esi]
inc esi
test al, al
jz koniec
cmp al, '\'
jne petla
mov edx, esi
jmp petla
koniec:
ret
ExtractFileName endp
(...)
;usage (result in edx - pointer to first character of a filename)
invoke ExtractFileName, addr string1
;show the result
invoke MessageBox, 0, edx, 0, 0
方法三:
.386
.model flat, stdcall
option casemap:none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
include \masm32\include\user32.inc
includelib \masm32\lib\user32.lib
includelib \masm32\lib\kernel32.lib
;SSSSSSSSSSSSSSSSSSSSSSSSSS
.data
;SSSSSSSSSSSSSSSSSSSSSSSSSS
g_MsgCaption db "取文件名",0
g_szFS1 db "c:\a\a.txt", 0
g_szFS2 db "c:b.txt", 0
g_szFS3 db "c.txt", 0
;SSSSSSSSSSSSSSSSSSSSSSSSSS
.code
;SSSSSSSSSSSSSSSSSSSSSSSSSS
;:::::::::::::::::::::::::::::::::::::::::::::::::::::
; 输入:lpszFileSpec=指向文件说明符字符串的指针(首地址)
; 返回值:eax=0,lpszFileSpec指向的文件说明符字符串为空
; eax>0, 其值为指向文件名字符串的指针(首地址)
;:::::::::::::::::::::::::::::::::::::::::::::::::::::
GetFileName proc uses edi lpszFileSpec: dword
mov eax, lpszFileSpec
mov edi, eax
test eax, eax
jz @GetFileNameDone
INVOKE lstrlen,eax
test eax, eax
jz @GetFileNameDone
lea ecx,[eax+edi]
@GetFileNameNext:
cmp ecx, edi
jb @GetFileNameSon
mov al,[ecx]
cmp al, '\'
jz @GetFileNameSon
cmp al, ':'
jz @GetFileNameSon
sub ecx, 1
jmp @GetFileNameNext
@GetFileNameSon:
lea eax, [ecx+1]
@GetFileNameDone:
ret
GetFileName endp
start:
invoke GetFileName, offset g_szFS1
invoke MessageBox, NULL, eax, offset g_MsgCaption, MB_OK
invoke GetFileName, offset g_szFS2
invoke MessageBox, NULL, eax, offset g_MsgCaption, MB_OK
invoke GetFileName, offset g_szFS3
invoke MessageBox, NULL, eax, offset g_MsgCaption, MB_OK
invoke ExitProcess,NULL
end start