Question

如何从turbo c ++运行任何exe文件？我知道我应该停止使用turbo c ++并将其移至Dev或Code :: Blocks，但是我的学校不同意所以我必须对它进行处理。

我只想知道如何在有或没有system（）函数的情况下运行文件。欢迎提出任何建议

这是我到目前为止所尝试的内容：

1

#include<process.h>
int main()
{
    system("tnfsv13.exe");     //tnfsv being a 16-bit application(The need for slowness v 13)
    return 0;
}

2

  #include<process.h>
    int main()
    {
        system("tnfsv13.bat");     
         return 0;
    }

tnfsv13.bat：

启动“c：\ TurboC3 \ BIN \”tnfsv13.exe

注意：只是有疑问，你们：system（）在Windows XP中不起作用。我在Windows 7中使用dosbox尝试了它并且运行良好，但在XP中它绝对没有任何效果。甚至系统（“dir”）命令似乎都不起作用，但系统（NULL）返回1.任何猜测为什么？

感谢。

Answer 1

system()工作正常，但它可能无法完全按照您的预期工作：它与在MSDOS（或Win32）命令提示符下键入命令（包括连接到控制台的输入和输出）完全相同。

如果您只想运行程序，传递参数，而不是从中返回，请使用exec()函数族中的方便表单。有关示例，请参阅this。

Answer 2

您也可以使用Turbo C ++的execl()功能。 execl()加载并运行C:\\TC\\BIN\\tnfsv13.exe。 NULL表示没有要发送给tnfsv13.exe的参数。如果发生错误，execl()会将-1返回int c。

#include<stdio.h>
#include<process.h>

int main()
{
    int c = execl("C:\\TC\\BIN\\tnfsv13.exe", NULL);


    return 0;
}

说明：

execl() loads and executes a new child process.  Because the child
process is placed in the memory currently occupied by the calling
process, there must be sufficient memory to load and execute it.

'pathname' specifies the file name of the child process.  If
'pathname' has a file name extension, then only that file is searched
for. If 'pathname' ends with a period (.), then 'pathname' without an
extension is searched for.  If that filename is not found, then
".EXE" is appended and execl() searches again.  If 'pathname' has no
extension and does not end with a period, then execl() searches for
'pathname' and, if it is not found, appends ".COM" and searches
again.  If that is not found, it appends ".EXE" and searches again.

 'arg0', 'arg1',...'argn' are passed to the child process as command-
line parameters.  A NULL pointer must follow 'argn' to terminate the
list of arguments. 'arg0' must not be NULL, and is usually set to
'pathname'.

The combined length of all the strings forming the argument list
passed to the child process must not exceed 128 bytes.  This includes
"n" (for 0-n arguments) space characters (required to separate the
arguments) but does not include the null ('\0') terminating
character.

   Returns:     If execl() is successful, it does not return to the
                calling process. (See the spawn...() routines for a
                similar function that can return to the calling
                process). If an error occurs, execl() returns -1 to
                the calling process. On error, 'errno' (defined in
                <errno.h>) is set to one of the following values
                (defined in <errno.h>):

                E2BIG       Argument list or environment list too big.
                              (List > 128 bytes, or environment > 32k)
                EACCES      Locking or sharing violation on file.
                              (MS-DOS 3.0 and later)
                EMFILE      Too many files open.
                ENOENT      File or path not found.
                ENOEXEC     File not executable.
                ENOMEM      Not enough memory.

     Notes:     Any file open when an exec call is made remains open
                in the child process.  This includes
                'stdin','stdout', 'stderr', 'stdaux', and 'stdprn'.

                The child process acquires the environment of the
                calling process.

                execl() does not preserve the translation modes of
                open files.  Use setmode() in the child process to
                set the desired translation modes.

                See the spawn...() routines for similar though more
                flexible functions that can return to the calling
                program.

   Caution:     The file pointers to open buffered files are not
                always preserved correctly.  The information in the
                buffer may be lost.

                Signal settings are not preserved.  They are reset to
                the default in the child process.

--------------------------------示例-------------- -------------------

The following statements transfer execution to the child process
"child.exe" and pass it the three arguments "child", "arg1",
and"arg2":

       #include <process.h>    /* for 'execl' */
       #include <stdio.h>      /* for 'printf' and 'NULL' */
       #include <errno.h>      /* for 'errno', 'ENOENT' and 'ENOMEM' */

       main()
       {
           execl("child.exe", "child", "arg1", "arg2", NULL);
           /* only get here on an exec error */
           if (errno == ENOENT)
               printf("child.exe not found in current directory\n");
           else if (errno == ENOMEM)
               printf("not enough memory to execute child.exe\n");
           else
               printf("  error #%d trying to exec child.exe\n", errno);
       }

Turbo C ++系统函数运行可执行文件

2 个答案: