如下VC++6.0编译出现错误，求高手指点~

Question

//setops.cpp--some set operations
#include<iostream>
#include<string>
#include<set>
#include<algorithm>
#include<iterator>

int main()
{
using namespace std;
const int N=6;
string s1[N]={"buffoon","thinkers","for","heavy","can","for"};
string s2[N]={"metal","any","food","elegant","deliver","for"};

set<string> A(s1,s1+N);
set<string> B(s2.s2+N);
ostream_operator<string,char> out(cout," ");
cout<<"Set A: ";
copy(A.begin(),A.end(),out);
cout<<endl;
cout<<"Set B: ";
copy(B.begin(),B.end(),out);
cout<<endl;

cout<<"Union of A and B:\n";
set_union(A.begin(),A.end(),B.begin(),B.end(),out);
cout<<endl;

cout<<"Intersection of A and B:\n";
set_intersection(A.begin(),A.end(),B.begin(),B.end(),out);
cout<<endl;

cout<<"Difference of A and B:\n";
set_defference(A.begin(),A.end(),B.begin(),B.end(),out);
cout<<endl;

set<string> C;
cout<<"Set C:\n";
set_union(A.begin(),A.end(),B.begin(),B.end(),
insert_iterator<set<string> > (C,C.begin()));
copy(C.begin(),C.end(),out);
cout<<endl;

string s3("grungy");
C.insert(s3);
cout<<"Set C after insertion:\n";
copy(C.begin(),C.end(),out);
cout<<endl;

cout<<"Showing a range:\n";
copy(C.lower_bound("ghost"),C.upper_bound("spook"),out);
cout<<endl;

system("pause");
return 0;
}

Answer 1

set<string> B(s2.s2+N); // 是不是把逗号打错点了？