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#include <bits/stdc++.h>
using namespace std;
int maxH = 8,maxL = 8,l = maxH/2,h = maxL/2;
void v(int h1,int l1){
    for(int i = 0;i<maxH;i++){
        for(int j = 0;j<maxL;j++){
            if(i==h && j==l){
                cout<<setw(3)<<"A";
            }else if(i==h1 && j==l1){
                cout<<setw(3)<<"B";
            }else{
                cout<<setw(3)<<".";
            }
        }
        cout<<endl;
    }
}
int main(){
    srand(time(0));
    int h1 = rand()%8,l1 = rand()%8;
    char a;
    while(1){
        v(h1,l1);
        cout<<"请输入方向 (w,a,s,d)"<<endl;
        cin>>a;
        if(a=='a'){
            l--;
            if(l-1<0){
                l = 0;
            }
            if(l==l1 && h==h1){
                l1--;
            }
        }else if(a=='d'){
            l++;
            if(l+1>maxH){
                l = maxL-1;
            }
            if(l==l1 && h==h1){
                l1++;
            }
        }else if(a=='w'){
            h--;
            if(h-1<0){
                h = 0;
            }
            if(h==h1 && l==l1){
                h1--;
            }
        }else if(a=='s'){
            h++;
            if(h+1>maxH){
                h = maxH-1;
            }
            if(h==h1 && l==l1){
                h1++;
            }
        }
        if(l1<0 || l1+1>maxL || h1<0 || h1+1>maxH){
            system("cls");
            v(h1,l1);
            break;
        }
        system("cls");
    }
    return 0;
}