STL程序员开发指南源码

				//文件名:CHAPTER9-3.cpp
				#include 
				#include 
				#if _MSC_VER > 1020   // if VC++ version is > 4.2
				   using namespace std;  // std c++ libs implemented in std
				#endif
				int main( )
				{
				   set  s1;
				   set ::iterator s1_Iter;
				   set ::const_iterator s1_cIter;
				   s1.insert( 1 );
				   s1.insert( 2 );
				   s1.insert( 3 );
				   s1_Iter = s1.begin( );
				   cout 				   s1_Iter = s1.begin( );
				   s1.erase( s1_Iter );
				   // The following 2 lines would err because the iterator is const
				   // s1_cIter = s1.begin( );
				   // s1.erase( s1_cIter );
				   s1_cIter = s1.begin( );
				   cout 				}