Question

VS2010旗舰版中文版，怎么写一个C语言的程序，教一下每步的步骤，越具体越好，我刚学C，没用过那个软件

Answer 1

File->New->Project

在打开的New Project对话框中最左侧一栏中选择Visual C++下面的CLR，之后在其右侧的区域中选择CLR Empty Application

并在下面的三个文本框中填入工程名称（Name),工程位置(Location)以及解决方案名称(Solution Name)

之后单击OK

然后可以解决方案浏览器中看到刚才新建的工程，右击工程名，选择Properties(属性)，在打开的对话框中选择Configuration Properties(配置属性)下面的General(一般），然后将右边对话框中的Common Language Runtime Support(CLR支持)改为"No Common Language Runtime Support",然后点击确定退出

接下来右击工程中的Source Files,选择Add->New Item...，在打开的对话框中选择“C++ File(.cpp)"，并在下方输入一个以.c结尾的文件名，之后点击Add，之后就可以在这个文件中加入C语言代码，按F5就可以调试运行了。

Answer 2

Run-Time Library Reference

_stat, _stat64, _stati64, _wstat, _wstat64, _wstati64See Also
File Handling Routines | _access | _fstat | _getmbcp | _setmbcp | Run-Time Routines and .NET Framework Equivalents
Requirements
Routine Required header Optional headers Compatibility
_stat <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_stat64 <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_stati64 <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_wstat <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP
_wstat64 <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP
_wstati64 <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP

For additional compatibility information, see Compatibility in the Introduction.

Libraries

All versions of the C run-time libraries.
Get status information on a file.

int _stat(
const char *path,
struct _stat *buffer
);
int _stat64(
const char *path,
struct __stat64 *buffer
);
int _stati64(
const char *path,
struct _stati64 *buffer
);
int _wstat(
const wchar_t *path,
struct _stat *buffer
);
int _wstat64(
const wchar_t *path,
struct __stat64 *buffer
);
int _wstati64(
const wchar_t *path,
struct _stati64 *buffer
);
Parameters
path
Pointer to a string containing the path of existing file.
buffer
Pointer to structure that stores results.
Return Value
Each of these functions returns 0 if the file-status information is obtained. A return value of –1 indicates an error, in which case errno is set to ENOENT, indicating that the filename or path could not be found.

See _doserrno, errno, _sys_errlist, and _sys_nerr for more information on this, and other, return codes.

The date stamp on a file can be represented if it is later than midnight, January 1, 1970, and before 19:14:07 January 18, 2038, UTC unless you use _stat64 or _wstat64, in which case the date can be represented up till 23:59:59, December 31, 3000, UTC.

Remarks
The _stat function obtains information about the file or directory specified by path and stores it in the structure pointed to by buffer. _stat automatically handles multibyte-character string arguments as appropriate, recognizing multibyte-character sequences according to the multibyte code page currently in use.

_wstat is a wide-character version of _stat; the path argument to _wstat is a wide-character string. _wstat and _stat behave identically except that _wstat does not handle multibyte-character strings.

Generic-Text Routine Mappings

TCHAR.H routine _UNICODE & _MBCS not defined _MBCS defined _UNICODE defined
_tstat _stat _stat _wstat
_tstat64 _stat64 _stat64 _wstat64
_tstati64 _stati64 _stati64 _wstati64

The _stat structure, defined in SYS\STAT.H, includes the following fields.

st_gid
Numeric identifier of group that owns file (UNIX-specific) This field will always be zero on Windows NT systems. A redirected file is classified as a Windows NT file.
st_atime
Time of last access of file. Valid on NTFS but not on FAT formatted disk drives. Gives the same
st_ctime
Time of creation of file. Valid on NTFS but not on FAT formatted disk drives.
st_dev
Drive number of the disk containing the file (same as st_rdev).
st_ino
Number of the information node (the inode) for the file (UNIX-specific). On UNIX file systems, the inode describes the file date and time stamps, permissions, and content. When files are hard-linked to one another, they share the same inode. The inode, and therefore st_ino, has no meaning in the FAT, HPFS, or NTFS file systems.
st_mode
Bit mask for file-mode information. The _S_IFDIR bit is set if path specifies a directory; the _S_IFREG bit is set if path specifies an ordinary file or a device. User read/write bits are set according to the file 's permission mode; user execute bits are set according to the filename extension.
st_mtime
Time of last modification of file.
st_nlink
Always 1 on non-NTFS file systems.
st_rdev
Drive number of the disk containing the file (same as st_dev).
st_size
Size of the file in bytes; a 64-bit integer for _stati64 and _wstati64
st_uid
Numeric identifier of user who owns file (UNIX-specific). This field will always be zero on Windows NT systems. A redirected file is classified as a Windows NT file.
If path refers to a device, the st_size, various time fields, st_dev, and st_rdev fields in the _stat structure are meaningless. Because STAT.H uses the _dev_t type that is defined in TYPES.H, you must include TYPES.H before STAT.H in your code.

Requirements
Routine Required header Optional headers Compatibility
_stat <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_stat64 <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_stati64 <sys/types.h> followed by <sys/stat.h> <errno.h> Win 98, Win Me, Win NT, Win 2000, Win XP
_wstat <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP
_wstat64 <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP
_wstati64 <sys/types.h> followed by <sys/stat.h> or <wchar.h> <errno.h> Win NT, Win 2000, Win XP

For additional compatibility information, see Compatibility in the Introduction.

Libraries

All versions of the C run-time libraries.

Example
// crt_stat.c
/* This program uses the _stat64 function to
* report information about the file named stat.c.
*/

#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>

int main( void )
{
struct __stat64 buf;
int result;

/* Get data associated with "crt_stat.c ": */
result = _stat64( "crt_stat.c ", &buf );

/* Check if statistics are valid: */
if( result != 0 )
perror( "Problem getting information " );
else
{
/* Output some of the statistics: */
printf( "File size : %ld\n ", buf.st_size );
printf( "Drive : %c:\n ", buf.st_dev + 'A ' );
printf( "Time modified : %s ", _ctime64( &buf.st_mtime ) );
}
}
Sample Output
File size : 732
Drive : C:
Time modified : Thu Feb 07 14:39:36 2002
See Also
File Handling Routines | _access | _fstat | _getmbcp | _setmbcp | Run-Time Routines and .NET Framework Equivalents

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Answer 3

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