vector<string> cars = {"Volvo", "BMW", "Ford", "Mazda"}; cars.erase(cars.begin() + 1); for (string car : cars) { cout << car << "\n"; }Try it Yourself » Definition and UsageThe erase() function removes an element or a range of elements from a vector. The elements ...
//1、pop_backdemo.pop_back();//2、erase原型:返回值是一个迭代器iteratorerase(iteratorposition);iteratorerase(iteratorfirst,iteratorlast);//erase删除特定位置的元素(第二个元素)autoiter=demo.erase(demo.begin()+1);//删除区间范围autoiter=demo.erase(demo.begin()+1,demo.end()-2);//删除指定的...
Return value A random access iterator pointing to the new location of the element that followed the last element erased by the function call, which is the vector end if the operation erased the last element in the sequence. 删除值为3的元素,按说it = vec.erase(it); 是正确的...
// Empty.cpp // compile with: /EHsc // Illustrates the vector::empty and vector::erase functions. // Also demonstrates the vector::push_back function. // // Functions: // // vector::empty - Returns true if vector has no elements. // // vector::erase - Deletes elements from a ...
vector::erase官方说明 erase支持一次删除某个位置的元素,也支持删除一个区间的元素 注意返回值的说明 An iterator pointing to the new location of the element that followed the last element erased by the function call. This is the container end if the operation erased the last element in the sequen...
函数原型:iterator erase (iterator position); //删除指定元素 iterator erase (iterator first, iterator last); //删除指定范围内的元素 返回值:指向删除元素(或范围)的下一个元素。(An iterator pointing to the new location of the element that followed the last element erased by the function call. Thi...
c.erase(pos)c.erase(beg,end)删除pos位置的数据，传回下一个数据的位置。删除[beg,end)区间的数据...
std::erase & std::erase_if (std::vector) 简介 C++ 的 vector 本质上是一个动态数组,它的元素是连续存储的,这意味着不仅可以通过迭代器访问元素,还可以使用指向元素的常规指针来对其进行访问。还可以将指向 vector 元素的指针传递给任何需要指向数组元素的指针的函数。
This article illustrates how to use thevector::erasefunction, thevector::emptyfunction, and thevector::push_backStandard Template Library (STL) functions in Visual C++. The information applies only to unmanaged Visual C++ code. Original product version:Visual C++ ...
在该博文后续的一些代码说明中,当调用vector的erase函数时,发现vector中的元素对象的析构函数被调用了多次。按照通常的理解,析构函数被调用一次就可以销毁对象,那为什么vector容器在用erase删除其元素对象时,其被删除的元素对象的析构函数要被多次调用呢?