@[fff1842889002](/user/633031) scanf不能直接输入字符串，只能这样：` scanf("%s %s %s",a1.c_str(),a2.c_str(),a3.c_str());`
by Google_chrome @ 2022-03-06 18:04:11
@[滑稽人](/user/553188)
```cpp
cin>>a1>>a2>>a3
scanf的%s需要预先分配空间
```
by STLvector @ 2022-03-06 18:14:39
@[ConsleStick](/user/637565) 嗯
by Google_chrome @ 2022-03-06 18:15:24