Question

这是我的方案。

#include <ncurses.h>

int main( int argc, char *argv[] )
{
    initscr();
    FILE *fd;
    char *ProgFile;

    ProgFile = argv[1];
    printw(ProgFile);
    refresh();

    fd = fopen(ProgFile,"rb");

    if( fd==NULL )
    {
        printw("error");
        perror ("The following error occurred");
        refresh();
    }
    else
    {
        printw("bin file loaded:  %s ",ProgFile);
        refresh();
    }

    getch();
    endwin();

    return 0;
}

when run it given this error message: No such file or directory.

but if i hardcode ProgFile = "filemname.bin"; then the program works perfectly.

当节目使用两种版本的印刷文档名称时,Bin询问ProgFile的价值。

我一直试图用两天时间解决这一问题,对正在发生的事情没有任何想法。谁能告诉我什么是错的?

this is c++ on linux centos

Answer 1

A program looks for relative filenames (those not starting with /) in its present working directory; this is inherited from the parent, which is the shell if you execute the program from the command line, and can be set explicitly when you run it from a starter. So, you need to make sure the program is started in the same directory that the file is in.

(你也可使用绝对途径,或采用明确的<代码>chdir)。该系统称为档案的目录,但两者都很粗略,因此很难将方案围绕起来。

Answer 2

First, this is C and not C++. I don t see any C++ in your code.

......

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

int main( int argc, char *argv[] )
{
    FILE *fd;
    char *ProgFile;

    ProgFile = argv[1];
    printf(ProgFile);

    fd=fopen(ProgFile,"rb");

    if( fd==NULL )
    {
        printf("error");
    }
    else
    {
        printf("bin file loaded:  %s ",ProgFile);
    }

    return 0;
}

对我来说,工作完全是罚款。确保你通过正确的论点和正确的道路。我建议你走整个道路,而不仅仅是filemname.bin。

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