@ symbol not erasing when moving

[klay2]

the @ symbol won't go away like it should and yes I know it has a lot of windows specific code I couldn't find a good way around that

  #include <iostream>
#include <windows.h>

using namespace std;

char map[23][23];

class Player
{
public:
	int x = 10;
	int y = 10;
	int px = 10;
	int py = 10;
	int hp = 100;
};

void SetMap()
{
	int countx = 23;
	int county = 23;

	while (county > 0)
	{
		while (countx > 0)
		{
			map[countx][county] = 219;
			countx--;
		}
		county--;
		countx = 23;
	}
}

void DrawScreen()
{
	int countx = 23;
	int county = 23;

	system("CLS");

	while (county > 0)
	{
		while (countx > 0)
		{
			cout << map[countx][county];
			countx--;
		}
		county--;
		countx = 23;
		cout << endl;
	}
}

int main()
{
	
	Player player;

	SetConsoleTitle("ASCII Quest");

	SetMap();
	
	while (true)
	{
		cout << "ASCII Quest" << endl << endl;
		cout << "1.Play" << endl << "2.Quit" << endl;
		
		system("pause > NULL");
		system("CLS");

		if (GetAsyncKeyState('1'))
		{
			while (TRUE)
			{
				map[player.px][player.py] = 219;
				map[player.x][player.y] = '@';

				DrawScreen();

				system("Pause > NULL");

				if (GetAsyncKeyState('W')) player.y++;

				if (GetAsyncKeyState('A')) player.x++;

				if (GetAsyncKeyState('D')) player.x--;

				if (GetAsyncKeyState('S')) player.y--;

				if (GetAsyncKeyState(VK_ESCAPE))
				{
					system("CLS");
					cout << "Paused" << endl << endl << "Press any key to resume.";
					system("Pause > NULL");
				}
				player.px = player.x;
				player.py = player.y;
			}
		}
		if (GetAsyncKeyState('2')) return(0);
	}	
}