学步园

#include <stdio.h> 
#include <Windows.h>
#include <string.h>

int main(int argc, char *argv[])
{
	char drive[4];
	char subdir[MAX_PATH];
	char fn[MAX_PATH]; 
	char exten[MAX_PATH];
	char exe_path[MAX_PATH];
	FILE *fs = NULL;

	_splitpath(argv[0], drive, subdir, fn, exten);

	printf("Full file name = %s\n", argv[0]);
	printf("Drive=%s\nSubdir=%s\nfilename=%s\nExtension=%s\n\n",\
		   strlen(drive) == 0 ? "null" : drive, \
		   strlen(subdir) == 0 ? "null" : subdir, fn, exten);

	sprintf(exe_path, "%s%s", drive, subdir);
	if (strlen(exe_path) == 0)
		sprintf(exe_path, ".\\");
	printf("strlen(exe_path)=%d\n", strlen(exe_path));
	printf("exe_path=%s\n", exe_path);	
	
	// Can we use the path? now test it as followed.
	sprintf(fn, "%stest.log", exe_path);
	fs = fopen(fn, "w+");
	fprintf(fs, "%s\n", fn);
	fclose(fs);
	
	getchar();
	return 0; 
}

运行结果：

Full file name = E:\Program\VC6\del\Debug\del.exe
Drive=E:
Subdir=\Program\VC6\del\Debug\
filename=del
Extension=.exe

strlen(exe_path)=25
exe_path=E:\Program\VC6\del\Debug\

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