输出传输到新文件

时间:2010-08-22 15:11:00

标签: c combinations

我是c的完整菜鸟。我从互联网上下载了一个代码。它会生成所有可能的字符组合。我想将此输出传输到文本文件。我尝试了一些但却无法做到的事情。任何人都可以建议我做出必要的改变吗?这是code.a

编辑:我已将put命令更改为fputs。我尝试了所有可能的combination.fputs(& str [1],f),fputs(“& str [1]”,“f”),fputs(“& str [1]”,f)和fputs( &安培; STR, “F”)。但没有任何效果。接下来要做什么?

#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;

}

2 个答案:

答案 0 :(得分:2)

puts替换为fputs,其中FILE*为第二个参数。您需要将其传递给bruteforce

答案 1 :(得分:0)

对于它的价值,你可以使用shell重定向来创建一个带有输出的文件......

./myprogram > output.txt