外文翻譯---codewarrior介紹-資料下載頁(yè)
2025-05-12 11:15本頁(yè)面
【導(dǎo)讀】當(dāng)你知道自己能寫更好的程序時(shí)，你一定不會(huì)再使用別人開發(fā)的應(yīng)用程序。使用CodeWarrior這一工具解決上述問(wèn)題。CodeWarrior也可以支持Java開發(fā)，但那是另一門課程的。計(jì)算機(jī)能夠理解并執(zhí)行你的程序。CodeWorrior這樣的開發(fā)工具進(jìn)行編碼、編譯、編輯、鏈接和調(diào)試的過(guò)程。你可以使用CodeWarrior來(lái)編寫你能夠想象得到的任何一種類型的程序。如象微軟公司的文本編輯器WordPad這樣的應(yīng)用程序。AdobePhotoshop，MicrosoftWord以及CodeWarrior軟件都是極其復(fù)雜的。下的程序，可以在開始菜單的控制面板項(xiàng)中看到它們。控制面板實(shí)際上是設(shè)置系。動(dòng)態(tài)鏈接庫(kù)提供了一些很有用的被系統(tǒng)和應(yīng)用程序共享的函數(shù)。常它們都是沒(méi)有用戶界面的。插件有點(diǎn)類似于DLLs，插件也是可。供其它軟件使用的小程序，但插件只能被特定的軟件使用。件相互依存的關(guān)系并知道如何將它們組合成為一個(gè)可用的應(yīng)用程序。CodeWarrior的編輯器中鍵入的源代碼。別忘了，CodeWarrior可是一個(gè)可擴(kuò)展的集成開發(fā)環(huán)境。碼，不難發(fā)現(xiàn)它們之間的關(guān)系。只是一個(gè)變量用錯(cuò)了，因此你很難發(fā)現(xiàn)它。但是因?yàn)檫@個(gè)錯(cuò)誤的存在使
【正文】 t even know it. You39。re good. Someone Else39。s Library Using someone else39。s library changes things a bit. Libraries provided by thirdparty vendors contain several files: the library file itself (usually with a name ending in .lib), a header file (.h), and (hopefully) some documentation (.doc). The header file is required so that the piler can match function calls in your program to functions within the library. You include the header file in your source file and then simply call the library functions as if they were part of the operating system. In most cases, you place the .h and .lib files in your source path, as defined by CodeWarrior. This path is usually in the directory where your project file is located, or inside a subdirectory of this directory. Note that certain libraries CodeWarrior provides, such as its MSL, reside in a different directory from the one your project lives in. In fact, CodeWarrior has its own special access paths, called system paths, which point to the directories of its own libraries and header files. a Shared Library Thirdparty vendors ship library files with their products so that they don39。t have to part with their source code. If you39。re the vendor, it39。s much safer to include the library and a header file (as opposed to a C or C++ source file and a header file), especially if you want to protect your intellectual property. The problem with this approach is that if there39。s a bug in the library you39。ve gotten from a thirdparty vendor, you39。ll be unable to fix it yourself. You39。ll have to obtain a fix for the library from that vendor, and who knows how easy that will be? A DLL is very similar to a library file. In fact, the only difference is that a library file usually gets piled and linked into your application, while a DLL is a separate file that either sits in your system directory or in the same directory as your piled application. When your application runs, it locates the DLL and uses its services on the fly. DLLs are typically identified by the .dll benefit of a DLL is that it can be shared. OK, that was pretty obvious. What is the benefit of sharing? First, more than one application can make use of a DLL. This can be especially useful when several programs use a large DLL that takes up lots of disk space and/or memory. Also, if a DLL contains a bug and is updated, all programs that share it will be automatically updated. This saves you and your runtime processing large amounts of time. So what kind of library would need to be shared by multiple applications? Oh, stuff like the very windows you see in your operating system environment. What is MFC? The Microsoft Foundation Classes (MFC) provides a set of functions that let you quickly write Windows applications. While you39。re free to call the Win32 APIs directly, it39。s easier to use the MFC because the classes provide basic services such as creating a window or writing a file along with intelligent default settings and errorchecking code. MFC is available on the Windows CodeWarrior CD but may not be the very latest version of the classes. Check with the Metrowerks help desk for that information, as Microsoft will send update patches between CodeWarrior releases. For the sake of platform parity, Macintosh developers can use Metrowerks39。 own PowerPlant class libraries. PowerPlant is an objectoriented application framework designed for writing Mac applications. Although we will not discuss PowerPlant here, it and MFC are similar in many ways, and what you learn here will help you to understand PowerPlant as well. When I discuss MFC, it is safe to assume that the same concepts apply to PowerPlant.
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