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std::array
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std::multimap::key_comp
std::multimap::lower_bound
std::multimap::max_size
std::multimap::merge
std::multimap::multimap
std::multimap::rbegin
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std::multimap::size
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std::multimap::upper_bound
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std::multiset
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std::swap(std::list)
std::swap(std::map)
std::swap(std::multimap)
std::swap(std::multiset)
std::swap(std::priority_queue)
std::swap(std::queue)
std::swap(std::set)
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std::swap(std::unordered_map)
std::swap(std::unordered_multimap)
std::swap(std::unordered_multiset)
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std::unordered_map
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std::unordered_map::empty
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std::unordered_map::end(int)
std::unordered_map::equal_range
std::unordered_map::erase
std::unordered_map::extract
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std::unordered_map::get_allocator
std::unordered_map::hash_function
std::unordered_map::insert
std::unordered_map::insert_or_assign
std::unordered_map::key_eq
std::unordered_map::load_factor
std::unordered_map::max_bucket_count
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std::unordered_multiset
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std::unordered_multiset::max_size
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std::unordered_multiset::unordered_multiset
std::unordered_set
std::unordered_set::begin
std::unordered_set::begin(int)
std::unordered_set::bucket
std::unordered_set::bucket_count
std::unordered_set::bucket_size
std::unordered_set::cbegin
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std::unordered_set::clear
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std::unordered_set::empty
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std::unordered_set::end(int)
std::unordered_set::equal_range
std::unordered_set::erase
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std::unordered_set::hash_function
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std::multimap::erase

STD：：Multimap：：擦除

​(1)​
void erase( iterator pos (until C++11)
iterator erase( const_iterator pos (since C++11)
iterator erase( iterator pos (since C++17)
​(2)​
void erase( iterator first, iterator last (until C++11)
iterator erase( const_iterator first, const_iterator last (since C++11)
size_type erase( const key_type& key (3)​

从容器中移除指定的元素。

1%29移除pos...

2%29移除范围内的元素。[first; last)中的有效范围。*this...

3%29移除所有键相等于key...

对擦除元素的引用和迭代器无效。其他引用和迭代器不受影响。

迭代器pos必须是有效的和可撤销的。因此end()迭代器%28有效，但不可取消引用%29不能用作pos...

参数

pos-iterator to the element to remove
first, last-range of elements to remove
key-key value of the elements to remove

返回值

1-2%，29，Iterator，在最后一次删除元素之后.

3%，29个元素被移除。

例外

1，2%29%28无29

3%29由Compare对象。

复杂性

给定实例c成multimap*

1%29摊销常数

2%29log(c.size())+std::distance(first, last)

3%29log(c.size()) + c.count(k)

例

二次

#include <map>
#include <iostream>
int main()
{
    std::multimap<int, std::string> c = {{1, "one"}, {2, "two"}, {3, "three"},
                                    {4, "four"}, {5, "five"}, {6, "six"}};
    // erase all odd numbers from c
    for(auto it = c.begin( it != c.end( )
        if(it->first % 2 == 1)
            it = c.erase(it
        else
            ++it;
    for(auto& p : c)
        std::cout << p.second << ' ';
}

二次

产出：

二次

two four six

二次

另见

clearclears the contents (public member function)

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