C++ 提高教程 STL --vector容器-赋值操作

Posted 2021-10-31 行码阁119

 

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

void printVector(vector<int>& v)
{
	for (vector<int>::iterator it = v.begin(); it != v.end(); it++)
	{
		cout << *it << " ";
	}
	cout << endl;
}
void test01()
{
	vector<int>v1;
	for(int i =0;i<9;i++)
	{
		v1.push_back(i);
	}
	printVector(v1);
	//赋值 operator =
	vector<int> v2;
	v2 = v1;
	printVector(v2);

	//assign
	//vector<int>v3;
	//v3.assign(v1.begin(), v2.end());
	//printVector(v3);

	//assign
	vector<int>v3;
	v3.assign(10,100);
	printVector(v3);
}
int main()
{
	test01();
	system("pause");
	return 0;
}