Delphi: Miracle in the history of development tools

xiaoxiao2021-03-06  37

It is not possible to mention Borland, which has been sensational with Borland, which has achieved a VB killer. Philippe Kahn is a miracle in the eyes of $ 2,000 in Silicon Valley. It has fallen several times to climb up with the star-level development tool. So far, it is still in its numerous star development. In the tool, Delphi is undoubtedly the most exciting pearl. Borland's PASCAL in Borland Pascal 7.x, the Pascal language seems to have developed to the extreme, the focus of the program language has turned from PASCAL to C , Borland must consider how to re-expand your youth, then you will get from Visul Basic. Inspire. In Borland's developers, Visual Basic is just a primary development tool, has not developed the ability to develop a real application system, therefore needs to develop a real development tool, this development tool must exceed Visual Basic, quickly compile the application, with Object-oriented features, it is possible to perform visual development, and it should also have a new Windows Framework component architecture. This architecture is to be completely encapsulated Windows objects. This is a grand idea, Borland chose Object Pascal as the basic language that implements this concept, but ObjectPascal is not perfect, you must make improvements to it, make it a new language, Borland is this new language. Named: Delphi. After two years, the miracle was born. Delphi was born. The whole world worshiped at its feet, and "Luoyang paper expensive", which triggered a crazy purchase, and his popular enthusiasm even borland did not expect, Delphi global lack Goods, there is no other development tool in the history of IT to cause such a sensation. Delphi saved Borland in the edge of the bankruptcy, making Borland fire rebirth. Delphi Summary Delphi has developed from Delphi1, Delphi2 to the current Delphi9, constantly adding and improving various characteristics, and functions are getting stronger. Delphi 1.0 in 1995 A super star in a development tool was born in Borland, which is Delphi 1.0. In Delphi1.0, Borland gave up OWL, and the new Visual Component Library, which started the era of Component technology, and its meaning is far-reaching; Delphi1.0 is completely objective. It is the earliest version of Delphi. Delphi 2.0 delphi2.0 completed 16-bit and 32-bit spans, provided full support for 32-bit operating systems, only in Windows 95 operating systems, as well as Delphi 1.0, is successful. In Delphi2.0, Borland increased the inheritance of visible FORM and more thoroughly. This greatly facilitates the management of similar data input interfaces, such as receiving entry and payment entry interface, a lot of action, so you can construct an Form as base class, inherit two or even multiple interfaces, the same action is written in the base class Different written in subclasses. Since all functions support the "virtual function" feature, this technique is also used for program writing and maintenance.

In Delphi 2.0, the concept of Data Modules is added, and the data package can be packaged in one module, open when the system is started or idle, so that all modules that use these Table can use it to avoid repeated open and off. Also, since all data tables are in one module, it is easy to manage maintenance and migration upgrades. Delphi 3.0 In Microsoft COM / DCOM technology, it is a smartly balanced relationship between Borland's developers in the demand for distributed application development tools, so that Delphi3.0 is the first paragraph of the Windows platform. Development tools for distributed development. Delphi 4.0 Due to the wrong decision, Delphi 4.0 is an immature product, which has a lot of bugs, although Borland has picked up, but unstable bad names quickly spread, Delphi4.0 gave Delphi The shadow is covered, and Visual Basic has a breath. Delphi 5.0 After failing Delphi4, Borland was carefully launched Delphi5.0, re-establishing Delphi's reputation, Delphi was consistent with Delphi developers. In this release, Delphi has made a lot of improvements to IDE (integrated development environment), extended support for databases (ADO and Interbase database), with Internet supported MIDAS improved version, TeamSouse version control tool, conversion function, framework concept, A lot of new components and new features. Delphi 6.0 Delphi 6 Adds support for the following features: support for the support of the CLX (Component Library for Cross-Platform Clx) cross-platform, extended run library, DBEXPRESS database engine, web service, and outstanding XML Support, a powerful web development framework, more enhancements of IDE, a large number of components and classes, and Delphi starts to prepare for .NET transition. Delphi 7.0 Delphi 7 is a product that Delphi transition to .NET, while taking care of the old user, Borland has added support for .NET, so Delphi7 can write the original Windows and .NET. In November 2002, Borland provided the modified Vcl.NET for Delphi7, so that the VCL component can be used in the .NET environment. Delphi 8.0 Delphi 8 for .NET integration development environment provides many tools and features to help you quickly create powerful .NET applications. It is designed to compete with Microsoft's Visual Studio. Net. Delphi 8 for .NET already has C #'s capabilities, while still retaining the ease of use of Delphi, but it is just a beta, a transitional version. Not too perfect. Delphi 9.0 Delphi9 integrates the features of STARTEAM, CALIBERRM, UNIT TESTING and TOGETHER. Added inline and for in loops. It integrates all Win32 development tools into Delphi9. If Delphi9 puts Borland Delphi .NET, Borland Delphi Win32, Borland C #. Borland Delphi .Net for Wince Edition is integrated into a development tool, then Microsoft and Borland's confrontation will be more trial.

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