deque::clear

清除、向量、双端队列中的所有元素。

void clear( );

示例

// deque_clear.cpp
// compile with: /EHsc
#include <deque>
#include <iostream>

int main( ) 
{
   using namespace std;
   deque <int> c1;
   
   c1.push_back( 10 );
   c1.push_back( 20 );
   c1.push_back( 30 );

   cout << "The size of the deque is initially " << c1.size( ) << endl;
   c1.clear( );
   cout << "The size of the deque after clearing is " << c1.size( ) << endl;
}

要求

标头: <deque>

命名空间: std

请参见

参考

deque Class

deque::erase 和 deque::clear

标准模板库