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Visual C++

DblDate.cpp：源码内容

							// This is the main project file for VC++ application project 
// generated using an Application Wizard.
#include "stdafx.h"
#include <iostream>
using namespace std;
#using <mscorlib.dll>
#include <tchar.h>
using namespace System;
using namespace System::Threading;
__value struct Dbl
{
	double hr,min,sec;
	double val;
public:
	Dbl(double v) { 
		val = v; 
		DateTime pDate = DateTime::get_Now();
		hr = pDate.get_Hour();
		min = pDate.get_Minute();
		sec = pDate.get_Second();
	}
	double getVal() { return val; }
	void print() {
		Console::Write("val=");
		Console::Write(val);
		Console::Write("  ");
		Console::Write(hr);
		Console::Write(":");
		Console::Write(min);
		Console::Write(":");
		Console::WriteLine(sec);
	}
	// Increment and decrement
	static Dbl& op_Assign(Dbl& lhs, const Dbl& rhs)
	{
		Console::WriteLine("op_Assign");
		lhs.val = rhs.val;
		DateTime pDate = DateTime::get_Now();
		lhs.hr = pDate.get_Hour();
		lhs.min = pDate.get_Minute();
		lhs.sec = pDate.get_Second();
		return lhs;
	}
};
// This is the entry point for this application
int _tmain(void)
{
    Console::WriteLine(S"Dbl Example");
	Dbl one(10.0);
	Dbl two(20.0);
	Console::Write("Inc: initial one: ");
	one.print();
	System::Threading::Thread::Sleep(5000);
	one = two;
	Console::Write("Inc: assigned one: ");
	one.print();
    return 0;
}

						