矢量擦除调用的错误析构函数

我有一个包含一些对象的向量。 我注意到，当我使用 erase 方法从矢量中删除一个元素时，我得到了对错误元素的析构函数调用(总是对最后一个元素(。 下面是一个产生错误输出的最小示例。

// Example program
#include <iostream>
#include <string>
#include <vector>
using namespace std;
class Test {
public:
Test(string value) {
_value = value;
cout << "Constructor:" << _value << endl;
}
Test(const Test &t) {
_value = t._value;
cout << "Copied:" << _value << endl;
}
~Test() {
cout << "Destructor:" << _value << endl;
}
string print() {
return _value;
}
string _value;
};
int main()
{
vector<Test> vec;
vec.reserve(3);
cout << "Creation" << endl << endl;
vec.push_back(Test("1"));
vec.push_back(Test("2"));
vec.push_back(Test("3"));
cout << endl << "Deleting" << endl << endl;
vec.erase(vec.begin());     // Here is called the element with value "3"
vec.erase(vec.begin());     // Here is called the element with value "3"
cout << endl << "Log" << endl << endl;
// But the final log print "3"
for (unsigned i = 0; i < vec.size(); i++) {
cout << vec[i].print()<<endl;
}
return 0;
}

输出为：

Creation
Constructor:1
Copied:1
Destructor:1
Constructor:2
Copied:2
Destructor:2
Constructor:3
Copied:3
Destructor:3
Deleting
Destructor:3         <-- WRONG, NEED TO BE 1
Destructor:3         <-- WRONG, NEED TO BE 2
Log
3
Destructor:3

我会在不更改容器向量的情况下解决这个问题。