stl vector 函数

打印向量的所有元素 (Printing all elements of a vector)

To print all elements of a vector, we can use two functions 1) vector::begin() and vector::end() functions.

要打印矢量的所有元素，我们可以使用两个函数：1) vector :: begin()和vector :: end()函数。

vector::begin() function returns an iterator pointing to the first elements of the vector.

vector :: begin()函数返回一个指向向量的第一个元素的迭代器。

vector::end() function returns an iterator point to past-the-end element of the vector.

vector :: end()函数将迭代器点返回到向量的past-the-end元素。

We run a loop from the first element to the less than past-the-element and prints the vector elements.

我们从第一个元素到小于过去的元素运行一个循环，并打印矢量元素。

Note: To use vector, include <vector> header.

注意：要使用向量，请包含<vector>标头。

C ++ STL程序打印矢量的所有元素 (C++ STL program to print all elements of a vector)

//C++ STL program to print all elements of a vector 
#include <iostream>
#include <vector>
using namespace std;
int main()
{
vector<int> v1;
v1.push_back(10);
v1.push_back(20);
v1.push_back(30);
v1.push_back(40);
v1.push_back(50);
//creating iterator
vector<int>::iterator it;
//printing all elements
cout << "vector v1 elements are: ";
for (it = v1.begin(); it != v1.end(); it++)
cout << *it << " ";
cout << endl;
return 0;
}

Output

输出量

vector v1 elements are: 10 20 30 40 50

翻译自: https://www.includehelp.com/stl/printing-all-elements-of-a-vector-using-vector-begin-and-vector-end-functions.aspx

stl vector 函数