c++求助
#include <iostream>#include <set>
#include <string>
int main()
{
using namespace std;
const int N = 6;
string s1 = { "buffoon", "thinkers", "for", "heavy", "can", "for" };
set<string> A(s1, s1 + N);
ostream_iterator<string, char> out(cout, " ");
copy(A.begin(), A.end(), out);//buffoon can for heavy thinkers
return 0;
}
ostream_iterator<string, char> out(cout, " ");//这句话的string，char分别有什么用吗，我把char去掉好像也可以打印
因为你要输出的是string，所以要写string；
template <class Type， class CharType = char， class Traits = char_traits <CharType>>
class ostream_iterator；
因为默认就是char，所以去掉也行。
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