수다닷컴

#includestdio.h
#includestdlib.h
#includeWindows.h
int main(void){
FILE *net_dat;
system(title netchk);
system(mode con cols=20 lines=1);
while (1){
if ((system(ping 192.168.25.30 -n 1)) == NULL){

system(cls);
fopen_s(&net_dat,c:\\dnc\\net.dat,w);
printf(\n);
system(cls);
system(color 6);
printf(0\n);
fclose(net_dat);
Sleep(1000);

}
else if ((system(ping 192.168.25.30 -n 1)) != NULL){
system(cls);
system(del c:\\dnc\\net.dat);
printf(\n);
system(cls);
system(color 4);
printf(X\n);
Sleep(1000);
}
}
}

재가 만들어본 프로그램인데 알아맞춰보실분.

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