要在`for`循环外面判`mp[mm.x][mm.y]`是否是`d`点的
by ivoleuoy @ 2022-10-16 20:39:57
比如把它改成这样
```
mm = q.front();q.pop();
if(mp[mm.x][mm.y]=='d') return mm.step;
```
by ivoleuoy @ 2022-10-16 20:40:55
@[tcdxh](/user/701653)
by ivoleuoy @ 2022-10-16 20:58:09
@[sunreturn](/user/632760) 感谢 懂了
by tcdxh @ 2022-10-16 22:07:01