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#2
rjsp2014-05-29 08:28
 程序代码：#include <iostream> #include <string> #include <fstream> #include <iterator> using namespace std; int main(void) { ofstream rfile( "12.21txt" ); // 我猜应该是 12.21.txt if( !rfile ) { cerr << "can not open a new file.\n"; return 1; } //ostream_iterator<string> q(rfile," "); //for( istream_iterator<string> p(cin); p!=istream_iterator<string>(); ++q, ++p ) // *q = *p; // 以上三句可直接用std::copy实现 std::copy( istream_iterator<string>(cin), istream_iterator<string>(), ostream_iterator<string>(rfile," ") ); return 0; } |
#include<iostream>
#include<string>
#include<fstream>
#include<iterator>
#include<algorithm>
using namespace std;
int main(void)
{
ifstream file;
file.open("12.21txt");
if (!file)
cout << "can not open a new file" << endl;
ofstream rfile;
rfile.open("12.21txt");
istream_iterator<string> p(cin), eof;
ostream_iterator<string> q(rfile," ");
while (p != eof)
{
*p++=*q++;//这里有错误，请问具体是哪里错了。谢谢
}
return 0;
}
这里我希望将cin输入的内容输入到12.21txt文件当中。