list::clear

清除列表的所有元素。

void clear( );

示例

// list_clear.cpp
// compile with: /EHsc
#include <list>
#include <iostream>

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

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

要求

标头: <list>

命名空间: std

请参见

参考

list Class

标准模板库