c文獻翻譯---c的優(yōu)點-c語言-資料下載頁
2025-01-19 06:21本頁面
【導(dǎo)讀】在過去的十幾年里，Microsoft給Windows和WindowsAPI添。加了許多功能，VB和C++也經(jīng)歷了許多變化。原來的一些內(nèi)容。其缺點是VisualBasic從來沒有實現(xiàn)真正意義上的面向?qū)ο?，所。以大型?yīng)用程序很難分解和維護。另外，因為VB的語法繼承于。另一方面，C++在ANSIC++語言定義中有其自己的根。譯器的，但已經(jīng)相當接近了。遺憾的是，這導(dǎo)致了兩個問題。為以前的編譯器設(shè)計的。其結(jié)果是在Windows中，該語言成為了一種非常雜亂。讓一個C++開發(fā)人員說說字符串有多少個定義方式就可以說。版本)、wchar_t*和OLECHAR*等。Microsoft給C++添加了許多Microsoft專用的關(guān)鍵字，Microsoft在正式場合把C#. 大多數(shù)獨立的評論員對其說法是“派生于C、C++和。要比C++容易得多，但比Java難一些。應(yīng)該指出，對于上述大多數(shù)特性，ManagedC++也具備。在結(jié)束這個主題前，還要指出C#的兩個局限性。在這方面，C++可能仍是所有低級語言中的佼佼者。定地方運行的內(nèi)聯(lián)函數(shù)和析構(gòu)函數(shù)。
【正文】 s been designed in such a way that you can work without them in almost all cases. ? Support for properties and events in the style of Visual Basic. ? Just by changing the piler options, you can pile either to an executable or to a library of .NET ponents that can be called up by other code in the same way as ActiveX controls (COM ponents). ? C can be used to write dynamic Web pages and XMLWeb services. Most of the above statements, it should be pointed out, do also apply to Visual Basic .NET and Managed C++. The fact that C is designed from the start to work with .NET, however, means that its support for the features of .NET is both more plete, and offered within the context of a more suitable syntax than for those other languages. While the C language itself is very similar to Java, there are some improvements: in particular, Java is not designed to work with the .NET environment. Before we leave the subject, we should point out a couple of limitations of C. The one area the language is not designed for is timecritical or extremely high performance code—the kind where you really are worried about whether a loop takes 1,000 or 1,050 machine cycles to run through, and you need to clean up your resources the millisecond they are no longer needed. C++ is likely to continue to reign supreme among lowlevel languages in this area. C lacks certain key facilities needed for extremely high performance apps, including the ability to specify inline functions and destructors that are guaranteed to run at particular points in the code. However, the proportions of applications that fall into this category are very low. 出處： Professional CThird Edition 作者： Simon Robinson Christian Nagel Jay Glynn Man Skinner Karli Watson Bill Evjen
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