stl vector 函数

C ++ vector :: end()函数 (C++ vector::end() function)

vector::end() is a library function of "vector" header, it can be used to get the last element of a vector. It returns an iterator pointing to the past-the-end element of the vector.

vector :: end()是“ vector”头文件的库函数，可用于获取矢量的最后一个元素。 它返回一个指向向量的past-the-end元素的迭代器。

Note:

注意：

• To use vector, include <vector> header.

  要使用vector，请包含<vector>标头。

• It does not point to the last element, thus to get the last element we can use vector::end()-1.

  它不指向最后一个元素，因此要获取最后一个元素，我们可以使用vector :: end()-1 。

Syntax of vector::end() function

vector :: end()函数的语法

vector::end();

Parameter(s): none – It accepts nothing.

参数： 无 –不接受任何内容。

Return value: iterator – It returns an iterator pointing to the past-the-end element of the vector.

返回值： iterator –返回一个迭代器，该迭代器指向向量的past-the-end元素。

Example:

例：

Input:    vector
    
      vector1{ 1, 2, 3, 4, 5 };    Function call:    vector
     
      ::iterator it;    it = vector1.end()-1;    cout << *it << endl;    Output:    5
     
    

C ++ STL程序演示vector :: end()函数的示例 (C++ STL program to demonstrate example of vector::end() function)

//C++ STL program to demonstrate example of //vector::end() function#include 
    
     #include 
     
      using namespace std;int main(){
       vector
      
        v1;    v1.push_back(10);    v1.push_back(20);    v1.push_back(30);    v1.push_back(40);    v1.push_back(50);    //creating iterator    vector
       
        ::iterator it;    it = v1.end()-1;    cout << "last element is: " << *it << endl;    return 0;}
       
      
     
    

Output

输出量

last element is: 50

Reference:

参考：

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stl vector 函数