我对c完全陌生。我已经从互联网下载了代码。它生成所有可能的字符组合。我想将此输出传输到文本文件。我尝试了几件事,但无法做到。有人可以建议我进行必要的更改吗?这是代码。

编辑:我已将put命令更改为fputs。我尝试了所有可能的组合。fputs(&str [1],f),fputs(“&str [1]”,“ f”),fputs(“&str [1]”,f)和fputs(&str,“ f”) 。但没有任何效果。接下来做什么?

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define MINCHAR 33
#define MAXCHAR 126

char *bruteforce(int passlen, int *ntries);

int main(void) {

    int i, wdlen, counter;
    char *str;
    clock_t start, end;
    double elapsed;
    FILE *myfile;
    myfile = fopen("ranjit.txt","w");

    do {
        printf("Word length... ");
        scanf("%d", &wdlen);
    } while(wdlen<2);

    start = clock();

    bruteforce(wdlen, &counter);

    end = clock();

    elapsed = ((double) (end - start)) / CLOCKS_PER_SEC;
    fprintf(myfile,"\nNum of tries... %d \n",counter);
    fprintf(myfile,"\nTime elapsed... %f seconds\n",elapsed);
    return counter;

}

char *bruteforce(int passlen, int *ntries) {

    int i;
    char *str;
    FILE *f;
    f = fopen("sandip.txt","w");

    *ntries=0;

    passlen++;

    str = (char*)malloc( passlen*sizeof(char) );

    for(i=0; i<passlen; i++) {
        str[i]=MINCHAR;
    }
    str[passlen]='\0';

    while(str[0]<MINCHAR+1) {
        for(i=MINCHAR; i<=MAXCHAR; i++) {
            str[passlen-1]=i;
            (*ntries)++;
            fputs("&str[1]",f);
        }

        if(str[passlen-1]>=MAXCHAR) {
            str[passlen-1]=MINCHAR;
            str[passlen-1-1]++;
        }

        for(i=passlen-1-1; i>=0; i--) {
            if(str[i]>MAXCHAR) {
                str[i]=MINCHAR;
                str[i-1]++;
            }
        }
    }

    return NULL;

}

最佳答案

puts替换为fputs,后者将FILE*作为其第二个参数。您将需要将其传递给bruteforce

09-27 23:08