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FOUNDATION

FOUNDATION類層次的根是NSObject類,它(和NSObject及NSCopying協(xié)議一起)定義了基本的對象屬性和行為。FOUNDATION框架的剩余部分由幾組相互關(guān)聯(lián)的類和一些獨立的類組成。有一些代表基本數(shù)據(jù)類型的類,如字符串、字節(jié)數(shù)組、用于存儲其它對象的集合類;一些代表系統(tǒng)信息的類,如日期類;還有一些代表系統(tǒng)實體的類,比如端口、線程、和進程。圖1、圖2、和圖3所示的類層次描述了這些類的邏輯分組及其繼承關(guān)系。
  • 本教程舉例說明了如何使用 ADO 編程模型對數(shù)據(jù)源進行查詢及更新。教程首先講述了完成此項任務(wù)的必要步驟

    本教程舉例說明了如何使用 ADO 編程模型對數(shù)據(jù)源進行查詢及更新。教程首先講述了完成此項任務(wù)的必要步驟,然后分別通過 Microsoft® Visual Basic、以 VC++ Extensions 為特征的 Microsoft® Visual C++、Microsoft® Visual Basic® 、Scripting Edition 和以 ADO for Windows FOUNDATION Classes (ADO/WFC) 為特征的 Microsoft® Visual J++® 進行更為具體的說明。

    標(biāo)簽: ADO 教程 舉例 如何使用

    上傳時間: 2015-10-13

    上傳用戶:330402686

  • C++ Template Metaprogramming sheds light on the most powerful idioms of today s C++, at long last de

    C++ Template Metaprogramming sheds light on the most powerful idioms of today s C++, at long last delivering practical metaprogramming tools and techniques into the hands of the everyday programmer. A metaprogram is a program that generates or manipulates program code. Ever since generic programming was introduced to C++, programmers have discovered myriad "template tricks" for manipulating programs as they are compiled, effectively eliminating the barrier between program and metaprogram. While excitement among C++ experts about these capabilities has reached the community at large, their practical application remains out of reach for most programmers. This book explains what metaprogramming is and how it is best used. It provides the FOUNDATION you ll need to use the template metaprogramming effectively in your own work.

    標(biāo)簽: Metaprogramming Template powerful idioms

    上傳時間: 2013-11-30

    上傳用戶:aix008

  • 《Debugging with GDB--The GNU Source-Level Debugger》 9th Edition 2004 By Richard Stallman,Roland P

    《Debugging with GDB--The GNU Source-Level Debugger》 9th Edition 2004 By Richard Stallman,Roland Pesch,Stan Shebs Free Software FOUNDATION

    標(biāo)簽: Source-Level Debugging Debugger Stallman

    上傳時間: 2015-11-10

    上傳用戶:lo25643

  • 學(xué)生信息管理系統(tǒng) GNU通用公共許可證 第二版

    學(xué)生信息管理系統(tǒng) GNU通用公共許可證 第二版,1991年 版權(quán)所有(C)1989,1991 Free Software FOUNDATION, Inc. 675 Mass Ave, Cambridge, MA02139, USA 允許每個人復(fù)制和發(fā)布這一許可證原始文檔的副本,但絕對不允許對它進行任何修改。 序言 大多數(shù)軟件許可證決意剝奪你的共享和修改軟件的自由。對比之下,GNU通用公共許可證力圖保證你的共享和修改自由軟件的自由。——保證自由軟件對所有用戶是自由的。GPL適用于大多數(shù)自由軟件基金會的軟件,以及由使用這些軟件而承擔(dān)義務(wù)的作者所開發(fā)的軟件。(自由軟件基金會的其他一些軟件受GNU庫通用許可證的保護)。你也可以將它用到你的程序中。 當(dāng)我們談到自由軟件(free software)時,我們指的是自由而不是價格。我們的GNU通用公共許可證決意保證你有發(fā)布自由軟件的自由(如果你愿意,你可以對此項服務(wù)收取一定的費用);保證你能收到源程序或者在你需要時能得到它;保證你能修改軟件或?qū)⑺囊徊糠钟糜谛碌淖杂绍浖欢疫€保證你知道你能做這些事情。 為了保護你的權(quán)利,我們需要作出規(guī)定:禁止任何人不承認(rèn)你的權(quán)利,或者要求你放棄這些權(quán)利。如果你修改了自由軟件或者發(fā)布了軟件的副本,這些規(guī)定就轉(zhuǎn)化為你的責(zé)任。 例如

    標(biāo)簽: GNU 信息管理系統(tǒng) 許可證

    上傳時間: 2013-12-22

    上傳用戶:zuozuo1215

  • The application wizard has created this UCMSGIP application for you. This application not only dem

    The application wizard has created this UCMSGIP application for you. This application not only demonstrates the basics of using the Microsoft FOUNDATION Classes but is also a starting point for writing your application.

    標(biāo)簽: application UCMSGIP created wizard

    上傳時間: 2015-12-08

    上傳用戶:小草123

  • This program is free software you can redistribute it and/or modify it under the terms of the GNU

    This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software FOUNDATION either version 2 of the License, or (at your option) any later version.

    標(biāo)簽: redistribute the software program

    上傳時間: 2014-11-30

    上傳用戶:大三三

  • Base64算法

    Base64算法,This application not only demonstrates the basics of using the Microsoft FOUNDATION classes but is also a starting point for writing your application

    標(biāo)簽: Base 64 算法

    上傳時間: 2015-12-22

    上傳用戶:wangyi39

  • 股票源碼The application wizard has created this SCDemo application for you. This application not only

    股票源碼The application wizard has created this SCDemo application for you. This application not only demonstrates the basics of using the Microsoft FOUNDATION Classes but is also a starting point for writing your application.

    標(biāo)簽: application created SCDemo wizard

    上傳時間: 2016-01-08

    上傳用戶:chenjjer

  • Executing a DTS package is very simple, in its simplest form the execution contains for 3 steps. The

    Executing a DTS package is very simple, in its simplest form the execution contains for 3 steps. These 3 steps form the FOUNDATION for all more complicated forms for package execution.

    標(biāo)簽: Executing execution contains simplest

    上傳時間: 2016-01-25

    上傳用戶:zhengzg

  • KEPware Automation DLL installation instructions: To use the KEPware Automation DLL in your Visua

    KEPware Automation DLL installation instructions: To use the KEPware Automation DLL in your Visual Basic project: 1) In the VB IDE, Select "Project/References". 2) If you have been using another vender s automation dll, uncheck it. For example, uncheck "OPC Automation 2.0" for the OPC FOUNDATION s automation dll. 3) Check "KEPware OPC Automation 2.0". 4) Recompile your VB project. If you have been using the OPC Fondation s automation dll, you should not need to make any changes to the VB source code.

    標(biāo)簽: Automation KEPware installation instructions

    上傳時間: 2013-12-28

    上傳用戶:電子世界

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