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public class SingletonBase<T> where T : new()
{
    private static T instance;

    public static T GetInstance()
    {
        if (instance == null)
            instance = new T();
        return instance;
    }

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// include the basic windows header files and the Direct3D header files
#include <windows.h>
#include <windowsx.h>
#include <d3d11.h>
#include <d3dx11.h>
#include <d3dx10.h>

// include the Direct3D Library file
#pragma comment (lib, "d3d11.lib")
#pragma comment (lib, "d3dx11.lib")

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#include "precomp.h"
#include "util.h"

using namespace Microsoft::WRL;
using namespace WEX::TestExecution;

PCWSTR StringFromFeatureLevel (D3D_FEATURE_LEVEL FeatureLevel)
{
    switch (FeatureLevel) {
    case D3D_FEATURE_LEVEL_12_1: return L"12.1";

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// 重写事件
bool event(QEvent *event)
{
	if (event->type() == QEvent::ActivationChange)
	{
		if (QApplication::activeWindow() != this)
		{
			this->hide();
		}
	}

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#include<iostream>
#include<time.h>
 
using namespace std;
 
int main()
{
	clock_t startTime,endTime;
	startTime = clock();
	for (int i = 0; i < 1000000; i++)

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Screenshot : MonoBehaviour
{
    private int index = 0;
    
    // Start is called before the first frame update
    void Start()

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// <http://wiki.unity3d.com/index.php?title=TakeScreenshot>

// ******  Notice : It doesn't works in Wep Player environment.  ******
// ******    It works in PC environment.                         ******
// Default method have some problem, when you take a Screen shot for your game. 
// So add this script.
// CF Page : http://technology.blurst.com/unity-jpg-encoding-javascript/
// made by Jerry ( [email protected] )
 
using UnityEngine;

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// <http://wiki.unity3d.com/index.php?title=TakeScreenshot>

// TODO:
// By default, screenshot files are placed next to the executable bundle -- we don't want this in a
// shipping game, as it will fail if the user doesn't have write access to the Applications folder.
// Instead we should place the screenshots on the user's desktop. However, the ~/ notation doesn't
// work, and Unity doesn't have a mechanism to return special paths. Therefore, the correct way to
// solve this is probably with a plug-in to return OS specific special paths.
 
// Mono/.NET has functions to get special paths... see discussion page. --Aarku

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using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;

/// <summary>
/// 数据库操作类
/// </summary>
public sealed class SQLiteHelper
{

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Platform dependent compilation
nity3D 多平台 预编译 宏定义

平台定义

UNITY_EDITOR 编辑器调用。

UNITY_STANDALONE_OSX 专门为Mac OS（包括Universal，PPC和Intelarchitectures）平台的定义。

UNITY_DASHBOARD_WIDGET Mac OS Dashboard widget (Mac OS仪表板小部件)。