我需要找到所有重复N次的单词，并将它们从字符串中删除。
我不知道如何在MASM32中遍历字符串和比较单词。有什么建议吗？
看来我已经完成了任务。这是一些代码。如果你对如何改进代码有一些建议，请随时告诉我！
.386
.model flat, stdcall
option casemap :none
include masm32.inc
include kernel32.inc
includelib masm32.lib
includelib kernel32.lib
.data
temp db 10
msg1 db 10, 13, "Input string: ", 10, 13, 0
msg2 db 10, 13, "How many times should word be repeated? ", 10, 13, 0
msg_true db 10, 13, "TRUE", 10, 13, 0
msg_false db 10, 13, "FALSE", 10, 13, 0
move_to_next_word db 1
infinite_loop db 1
garbage dd ?
input_string db 128 dup(?)
input_string_len dd ?
remaining_string_len dd ?
word_buffer db 128 dup(?)
repeat_num db 10 dup(?)
current_word_ptr dd ?
; PROTOTYPES-----------------------------------------------------
find_space proto inp:ptr byte, len:dword
str_len proto inp:ptr byte, delimiter:byte
str_to_int proto inp:ptr byte
str_cmp proto str1:ptr byte, str2:ptr byte, delimiter:byte
delete_word proto word_start:dword, word_end:dword, word_len:dword
; ---------------------------------------------------------------
.code
main proc
invoke StdOut, offset msg1
invoke StdIn, offset input_string, lengthof input_string
invoke StdOut, offset msg2
invoke StdIn, offset repeat_num, lengthof repeat_num
invoke str_to_int, offset repeat_num
mov esi, offset input_string
.while infinite_loop == 1
pushad
invoke str_len, offset input_string, 0
mov input_string_len, ecx
popad
invoke str_len, esi, 0
mov remaining_string_len, ecx
invoke find_space, esi, remaining_string_len
mov current_word_ptr, esi
.if ecx == 0
jmp terminate
.endif
; end of the current word
push edi
push esi
push edi
; counter of duplicates
xor edx, edx
mov dl, 0
mov edi, offset input_string
dec edi
mov ecx, input_string_len
.while ecx > 0
inc edi
invoke find_space, edi, ecx
invoke str_cmp, current_word_ptr, esi, " "
.if ebx == 1
inc dl
push esi ; word's start
push edi ; word's end
pushad
invoke StdOut, offset msg_true
popad
.elseif ebx == 0
pushad
invoke StdOut, offset msg_false
popad
.endif
.endw
.if dl == repeat_num
mov move_to_next_word, 0
.while dl > 1
pop edi
pop esi
inc edi
invoke str_len, edi, 0
dec edi
invoke delete_word, esi, edi, ecx
dec dl
.endw
; delete first word
pop edi
pop esi
invoke str_len, edi, 0
dec edi
invoke delete_word, esi, edi, ecx
.else
.while dl > 0
pop edi
pop esi
dec dl
.endw
.endif
pushad
invoke StdOut, offset input_string
popad
.if move_to_next_word == 1
; get ptr to the next word
pop esi
inc esi
.else
mov move_to_next_word, 1
pop garbage
.endif
.endw
terminate:
invoke ExitProcess, 0
main endp
; FUNCTIONS------------------------------------------------------
; esi - string start
; edi - string end
; ebx - word length
; ecx - length of the remaining string
find_space proc inp:ptr byte, len:dword
mov edi, inp
mov esi, inp
mov ecx, len
mov al, " "
cld
repne scasb
dec edi
mov ebx, edi
sub ebx, esi
ret
find_space endp
;ecx - length of a string
str_len proc inp:ptr byte, delimiter:byte
push edi
push eax
mov edi, inp
sub ecx, ecx
not ecx ; ECX = -1, or 4,294,967,295
mov al, delimiter
cld
repne scasb
not ecx
dec ecx
pop eax
pop edi
ret
str_len endp
; convert string to int
str_to_int proc inp:ptr byte
pushad
mov ecx, 0
mov esi, inp
cmp byte ptr [esi + ecx], 0
sub byte ptr [esi + ecx], 48d ;
inc ecx
popad
ret
str_to_int endp
; if equal then ebx = 1
; if not equal then ebx = 0
str_cmp proc str1:ptr byte, str2:ptr byte, delimiter:byte
.data
str1_len dd ?
str2_len dd ?
.code
push eax
push ecx
push edi
push esi
mov esi, str1
mov edi, str2
invoke str_len, str1, delimiter ; ecx = length of str1
mov str1_len, ecx
invoke str_len, str2, delimiter
mov str2_len, ecx
cmp str1_len, ecx
jne notequal
repe cmpsb
je equal
notequal:
mov ebx, 0
pop esi
pop edi
pop ecx
pop eax
ret
equal:
pop esi
pop edi
pop ecx
pop eax
mov ebx, 1
ret
str_cmp endp
delete_word proc word_start:dword, word_end:dword, word_len:dword
pushad
mov esi, word_end
inc esi
mov edi, word_start
mov ecx, word_len
inc ecx
rep movsb
popad
ret
delete_word endp
; ---------------------------------------------------------------
end main