关于文件的操作,

[pusshi]

#include <iostream>
#include <vector>
#include <fstream>

using namespace std;

int main()
{
void pn(vector<int> &sn);
void display(const vector<int> &dis, ostream &os=cout);

vector<int> s;

ofstream outfile("f:\shi.txt");
if (!outfile)
{
cerr<<"open file errer,find not ";
}

pn(s);

display(s, outfile);
return 0;

}

void pn(vector<int> &sn)
{
cout<<"请输入一个数,经pn=n*(3n-1)/2: ";
int n;
int pn;
cin>>n;

if ( (n >= 100) && (n<1) )
{
cout<<"\n erss";
cin.clear();

}
else
{
for (int i=1; i<=n; i++)
{
pn= i*(3*i-1)/2;
sn.push_back(pn);
cout<<pn<<"->";
}
}
}

void display(const vector<int> &dis, ostream &os)
{
for (int i=0; i<dis.size(); i++)
{
os<<dis[i]<<"-";
if ( i%10 )
{
cout<<"\n"<<"dfdsfds:";
}
}
}
为什么我的F盘shi.txt里没有内容,说明数据流没有输入到OS里面...高手指点一二

[wuyu637]

outfile.close();


关闭文件

[sys0004]

ofstream outfile( "f:\shi.txt ");->ofstream outfile( "f:\\shi.txt ");

[pusshi]

多谢指教..结帖了.....谢谢,