C语言高手请进！！！！！！

#include
#include
#include
#include
#include
#include
#include

int main(int argc, char *argv)
{
int res;
int fd;
char *buf = NULL;
char filename[256];
struct stat fstat;
strcpy(filename, argv[1]);

//读文件
res = stat(filename, &fstat);
if (res < 0) {
return -1;
}

fd = open(filename, O_RDONLY);
if (fd < 0) {
printf("open %s failed.\n", filename);
return -1;
}
buf = (char *)calloc(1, fstat.st_size);
if (buf == NULL) abort();
read(fd, buf, fstat.st_size);
close(fd);

//写文件
memset(filename, 0, 256);
sprintf(filename, "./output.dat");
fd = open(filename, O_CREAT|O_RDWR|O_APPEND, S_IRUSR|S_IWUSR);
if (fd==-1) {
printf("open %s failed.\n", filename);
return -1;
}
write(fd, buf, fstat.st_size);
close(fd);
if (buf != NULL) {
free(buf);
buf = NULL;
}

return 0;
}

0分 不干

#include "stdio.h"
main(){
char a[4]={'z','q','y'};
FILE *fp;
fp=fopen("e:\\temp\\zqy.txt","w");
fwrite(a,sizeof(char)*4,1,fp);
fclose(fp);
}
直接能用,收分!

去 编程爱好者啊
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