multiset的插入与删除

<span style="font-size:14px;">#include <iostream>#include<functional>#include <set>#include<iterator>#include <algorithm>using namespace std;int main (){typedef multiset<int,greater<int> > IntSet;IntSet myset;    int myints[] = {75,23,65,42,23};    for( int i = 0; i < 5; i++ ) {  myset.insert( myints[i] ); }    for( IntSet::const_iterator cite = myset.begin(); cite != myset.end(); ++cite ) {  cout << *cite << ' ';  // 75 65 42 23 23   }      multiset< int, greater<int> >::iterator ite = find( myset.begin(), myset.end(), 23 );      if( ite != myset.end() )    {    myset.erase(ite);  //只删除一个，而 myset.erase(23); 会删除所有值为23的元素      }    cout << endl;for( IntSet::const_iterator cite = myset.begin(); cite != myset.end(); ++cite ) {  cout << *cite << ' ';  // 75 65 42 23  }      std::cout << '\n';    return 0;}</span>