你out文件和输入有什么关系/jk
by VinstaG173 @ 2020-02-14 20:50:37
@[Vexalwig_Goodwcoffin](/user/59388) freopen（“CON”，“r”，stdin）也不行
by zyy121212 @ 2020-02-14 20:52:17
建议发学术
by Thomas_ @ 2020-02-14 20:52:32
system("cls");不能用 换行也坏了
by zyy121212 @ 2020-02-14 20:54:26
@[zhaodonglei](/user/178953) smg……
发完整代码吧。
by Hexarhy @ 2020-02-14 20:56:57
@[Hilarious_Reality](/user/80049)
```
#include<bits/stdc++.h>
#include <windows.h>
using namespace std;
int n=-1;
string s;
int l,m;
int main()
{
cout<<" 关于reopen"<<endl;
system("pause");
freopen("a.in","r",stdin);
freopen("a.in","w",stdout);
cin>>n;
if(n==-1)
{
cout<<1<<' '<<1<<' '<<0<<endl;
l=1;
m=0;
}
else
{
cin>>l>>m;
}
freopen("CON", "r", stdin);
freopen("CON", "w", stdout);
system("pause");
cin>>s;
system("cls");
cout<<" l:"<<l<<" m:"<<m<<endl;
}/*
fclose(stdin);
fclose(stdout); */
```
by zyy121212 @ 2020-02-14 21:06:11
@[zhaodonglei](/user/178953) 然鹅我不知道qaq
by Hexarhy @ 2020-02-14 21:07:47
@[zhaodonglei](/user/178953) 你在这之前加上
```fclose(stdin)```
```fclose(stdout)``` 试试？
by suxxsfe @ 2020-02-14 21:12:33
@[Hilarious_Reality](/user/80049) 。。。$QWQ$
by zyy121212 @ 2020-02-14 21:12:40
@[Thomas_Wade](/user/164432) 我试了。。。
by zyy121212 @ 2020-02-14 21:13:28