Question

C++ vector<string>读入数据及读取问题

#include <iostream>
using namespace std;
#include <vector>

int main()
{
//string str[4]={"啊啊","西西","哇哇","哈哈"};
vector <string> vstr(str,str+4);
vector<string>::iterator it;
for( it= vstr.begin() ; it !=vstr.end() ; ++it)
cout << *it << endl;//error
return 0;
}

VC中错误提示为：
error C2679: binary '<<' : no operator defined which takes a right-hand operand of type 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >' (or there is no acceptable conversion)
怎么才能读取出数据啊，去掉*后，读出的是地址额

Answer 1

加上头文件#include<string>
就没错了
由于输出<<对string的重载在头文件<string>里面

Answer 2

加上头文件<string>
即：#include <string>