2024.6.12 作业 xyt

今日课堂练习：vector构造函数

#include <iostream>
#include <vector>
using namespace std;void printVector(vector<int> &v)
{vector<int>::iterator iter;for(iter=v.begin(); iter != v.end(); iter++){cout << *iter << " ";}cout << endl;
}int main()
{vector<int> v;v.push_back(10);v.push_back(20);v.push_back(30);v.push_back(40);v.push_back(50);printVector(v);vector<int> v2 = v;printVector(v2);vector<int> v3(v2.begin()+2, v2.end());printVector(v3);return 0;
}