好吧，应当是```
nd& ls=node[node[i].lson], rs=node[node[i].rson];
```
by 樱初音斗橡皮 @ 2019-01-15 17:20:43
???
by 樱初音斗橡皮 @ 2019-01-15 17:20:52
ls是nd&类型，rs是nd类型
by xgzc @ 2019-01-15 17:23:32
@[xgzc](/space/show?uid=46800) 额。。。好吧，那我typedef一下。谢谢
by 樱初音斗橡皮 @ 2019-01-15 17:33:36
```cpp
nd &ls=node[i].lson, &rs=node[i].rson;
```
即可
by 小粉兔 @ 2019-01-15 17:58:15
@[小粉兔](/space/show?uid=10703) 不用了谢谢，因为我放弃治疗用$int\space ls=node[i].lson,\space rs=node[i].rson$然后$node[ls]$了
by 樱初音斗橡皮 @ 2019-01-15 18:00:21