求大神帮我看看为什么运行后按键符号老是动不了

#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<conio.h>
int x=50,y=10;
char key;
void gotoxy(int x,int y);
void draw(int x,int y);
void draw(int x,int y)
{
    system("cls");
    gotoxy(x,y);
    printf("&");
}
void gotoxy(int x,int y)
{
    HANDLE hOut=GetStdHandle(STD_OUTPUT_HANDLE);
    COORD pos={x,y};
    SetConsoleCursorPosition(hOut,pos);
}
int main()
{
    draw(x,y);
    while(1)
    {
        if(kbhit())
    {
        switch(key=getchar())
        {
            case 'w':{
                draw(x,y-1);
                break;
                }
            case 's':{draw(x,y+1);break;}
        }
    }
    }
}