C语言库函数的原型,有用的拿去

				// cout -- initialize standard output stream
				#include 
				#include 
				
				#pragma warning(disable: 4074)
				#pragma init_seg(compiler)
				static std::_Init_locks  initlocks;
				
				_STD_BEGIN
						// OBJECT DECLARATIONS
				
				__PURE_APPDOMAIN_GLOBAL static filebuf fout(_cpp_stdout);
				#if defined(_M_CEE_PURE)
				__PURE_APPDOMAIN_GLOBAL extern ostream cout(&fout);
				#else
				__PURE_APPDOMAIN_GLOBAL extern _CRTDATA2 ostream cout(&fout);
				#endif
						// INITIALIZATION CODE
				struct _Init_cout
					{	// ensures that cout is initialized
					__CLR_OR_THIS_CALL _Init_cout()
						{	// initialize cout
						_Ptr_cout = &cout;
						if (_Ptr_cin != 0)
							_Ptr_cin->tie(_Ptr_cout);
						if (_Ptr_cerr != 0)
							_Ptr_cerr->tie(_Ptr_cout);
						if (_Ptr_clog != 0)
							_Ptr_clog->tie(_Ptr_cout);
						}
					};
				__PURE_APPDOMAIN_GLOBAL static _Init_cout init_cout;
				
				_STD_END
				
				/*
				 * Copyright (c) 1992-2007 by P.J. Plauger.  ALL RIGHTS RESERVED.
				 * Consult your license regarding permissions and restrictions.
				 V5.03:0009 */