C++ 数字记忆小游戏

#include
using namespace std;
bool correct=true;
long long score,r=1,num,ans;
int rng(){
	srand(time(NULL));
	int rn=rand()%10;
	return rn;
}
void checkans(int ans){
	if(ans==num)score+=r*100;
	else correct=false;
}
void displaytext(string t,double delay,bool end){
	int i=0;
	while (t[i]!='\0'){
		cout<
		usleep(1000000*delay);
		i++;
	}
	if(end)cout<
}
int main(){
	displaytext("Hello!",0.1,false);
	usleep(1000000);
	system("CLS");
	displaytext("Welcome to Just a Number Memorising Game!",0.1,false);
	usleep(1000000);
	system("CLS");
	usleep(1000000);
	displaytext("Let's begin!",0.1,false);
	usleep(1000000);
	system("CLS");
	displaytext("[SCORE]: ",0.1,false);
	displaytext(to_string(score),0.05,true);
	for(int i=1;i<=to_string(score).size()+9;i++)displaytext("-&#