c++ stl隊(duì)列初始化

向量是什么？ (What is the vector?)

Vector is a container in C++ STL, it is used to represent array and its size can be changed.

Vector是C ++ STL中的一個(gè)容器，用于表示數(shù)組，并且其大小可以更改。

Read more: C++ STL Vector

： C ++ STL矢量

創(chuàng)建一個(gè)向量并將其初始化為數(shù)組 (Create a vector and initializing it like an array)

We can also initialize a vector like an array in C++ STL. Here, we are going to learn the same, how can we initialize a vector like an array?

我們還可以在C ++ STL中像數(shù)組一樣初始化向量。 在這里，我們將學(xué)習(xí)相同的知識(shí)， 我們?nèi)绾纬跏蓟駭?shù)組這樣的向量？

Here is the syntax to create and initialize a vector like an array,

這是創(chuàng)建和初始化向量(如數(shù)組)的語(yǔ)法，

vector<type> vector_name{element1, element2, ...};

Here,

這里，

• type – is the datatype.

  type –是數(shù)據(jù)類型。

• vector_name – is any use defined name to the vector.

  vector_name –是向量的任何使用定義的名稱。

• element1, element2, ... – elements to initialize a vector.

  element1，element2，... –用于初始化向量的元素。

Example to create/declare and initialize vector like an array

創(chuàng)建/聲明和初始化向量(如數(shù)組)的示例

vector::<int> v1{ 10, 20, 30, 40, 50 };

C ++ STL程序來(lái)創(chuàng)建和初始化像數(shù)組一樣的向量 (C++ STL program to create and initialize a vector like an array)

//C++ STL program to create and initialize //a vector like an array #include <iostream> #include <vector> using namespace std;int main() {//vector declaration and initialization//like an arrayvector<int> v1{ 10, 20, 30, 40, 50 };//printing the vector elements//using for each kind of loopcout << "Vector v1 elements are: ";for (int element : v1)cout << element << " ";cout << endl;//pushing the elementsv1.push_back(10);v1.push_back(20);v1.push_back(30);v1.push_back(40);v1.push_back(50);//printing the vector elements//using for each kind of loopcout << "After pushing the elements\nVector v1 elements are: ";for (int element : v1)cout << element << " ";cout << endl;return 0; }

Output

輸出量

Vector v1 elements are: 10 20 30 40 50 After pushing the elements Vector v1 elements are: 10 20 30 40 50 10 20 30 40 50

翻譯自: https://www.includehelp.com/stl/create-a-vector-and-initialize-it-like-an-arrays.aspx

c++ stl隊(duì)列初始化

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