vector::push_back

將元素加入至向量結尾。

void push_back(const T& Val);  void push_back(T&& Val);

參數

• Val
  要指派給加入到向量結尾之元素的值。

範例

// compile with: /EHsc /W4
#include <vector>
#include <iostream>

using namespace std;

template <typename T> void print_elem(const T& t) {
    cout << "(" << t << ") ";
}

template <typename T> void print_collection(const T& t) {
    cout << "  " << t.size() << " elements: ";

    for (const auto& p : t) {
        print_elem(p);
    }
    cout << endl;
}

int main()
{
    vector<int> v;
    for (int i = 0; i < 10; ++i) {
        v.push_back(10 + i);
    }

    cout << "vector data: " << endl;
    print_collection(v);

    // pop_back() until it's empty, printing the last element as we go
    while (v.begin() != v.end()) { 
        cout << "v.back(): "; print_elem(v.back()); cout << endl;
        v.pop_back();
    }
}

輸出

需求

標頭：<vector>

命名空間: std

請參閱

參考

vector 類別

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