自己写的找家的一个小程序，瞎写的，先记录一下

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char forrest[10][10]=
{'o','o','o','o','o','o','o','o','o','o',
'o','1','1','1','1','1','1','1','1','1',
'o','1','H','1','o','o','o','o','o','o',
'o','1','o','o','o','o','o','o','o','o',
'o','1','o','o','o','o','o','o','o','o',
'o','1','o','o','o','o','o','o','o','o',
'o','1','o','o','o','o','o','o','o','o',
'o','1','o','o','o','o','o','o','o','o',
'o','1','o','o','o','o','D','o','o','o',
'o','1','o','o','o','o','o','o','o','o'
};

void show_map()
{
        int i,j;

        for(i=0;i<10;i++){
                for(j=0;j<10;j++){
                        printf("%c",forrest[i][j]);
                }
                printf("\n");
        }
}

void search(int x, int y)
{
        if (x>9 || y>9 || x<0 || y<0)
                return;

        if(forrest[x][y] == 'D'){
                printf("haha, I got home!!!\n");
                exit(0);
        }

        if(forrest[x][y] == 'x')
                return;

        if(forrest[x][y] == '1')
                return;

        if(forrest[x][y] != 'H'){
                forrest[x][y] = 'x';
                show_map();
        }

        getchar();

        if (x==8){
                search(x, y-1);
                search(x, y+1);
        }else if(y==6){
                search(x-1, y);
                search(x+1, y);
        }else if ( abs(x-8) < abs(y-6) ){
                search(x-1, y);
                search(x+1, y);
                search(x, y-1);
                search(x, y+1);
        }else{
                search(x, y-1);
                search(x, y+1);
                search(x-1, y);
                search(x+1, y);
        }

        return;
}


int main()
{
        search(2,2);

        return 0;
}