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vector存放指针

admin 11月 12, 2020 0

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Example

定义vector对象，其每个元素指向string类型的指针；输出每个元素的内容及长度。

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

using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::vector;

int ()
{
	string s;
	vector<string *> v;
	while (cin >> s)
	{
		string *sp = new string(s);
		v.push_back(sp);
	}
	vector<string *>::iterator iter = v.begin();
	while (iter != v.end()) 
	{
		string *tmp = *iter;
		cout << tmp->size() << ", " << *tmp << endl;
		delete tmp;
		iter++;
	}
	return 0;
}

outputs

hello↙
world!↙
^Z↙
5, hello
6, world!

END.