Question

C++ vector<string> 输出问题

#include <iostream>
#include <vector>

//#pragma warning(disable: 4786)

using namespace std;

int main()
{
svec.push_back("how ");
svec.push_back("are ");
svec.push_back("you");
svec.push_back("?");

for (vector<string>::iterator iter = svec.begin(); iter != svec.end(); ++iter)
{
cout << iter << endl;
}

return 0;
}

结果不对 为什么

Answer 1

#include <iostream>
#include <vector>
#include <string>//加上这个头文件

//#pragma warning(disable: 4786)

using namespace std;

int main()
{
	//先声明一个vector变量
	vector<string> svec;

	svec.push_back("how ");
	svec.push_back("are ");
	svec.push_back("you");
	svec.push_back("?");

	for (vector<string>::iterator iter = svec.begin(); iter != svec.end(); ++iter)
	{
		//输出*iter才是输出那些字符串
		cout << *iter << endl;
	}

	getchar();
	return 0;
}

Answer 2

#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main()
{
vector<string> svec;//////////////////

svec.push_back("how ");
svec.push_back("are ");
svec.push_back("you");
svec.push_back("?");

for (vector<string>::iterator iter = svec.begin(); iter != svec.end(); ++iter)
{
cout << *iter << endl;
}

return 0;
}

Answer 3

for (vector<string>::iterator *iter = svec.begin(); iter != svec.end(); ++iter)
{
cout << *iter << endl;
}

Answer 4

iter++
而不是++iter.
还有你的vector定义哪去了.

Answer 5

cout << *iter << endl;