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Pascal essential
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table of Contents
Chapter 1: Pascal History Review
Chapter II: Write PASCAL Code
Chapter III: Type, Variables and Constants
Chapter 4: User Custom Data Type
Chapter 5: Statement
Chapter 6: Process and Function
Chapter 7: String Operation
Chapter 8: Memory
Chapter IX: Windows Programming
Chapter 10: Variant Type
Chapter 11: Program and Unit
Appendix A: Glossary
Appendix B: Example Name
about the author
Italians, long-term engaged in Delphi development and teaching, "Delphi entry to proficiency" and "Delphi Developer Handbook", this book "Essential Pascal" completed in October 1999. To learn more about Marco Cantù, please visit the website www.marcocanteu.com.
Translator
Programming skills, the contents of the tricks are not difficult to find on major programming websites, but it is difficult to see the foundation and deep things like Marco Cantù "Essential Pascal", which contains many years of work experience and Delphi. The in-depth understanding of Pascal is a very practical reference book, especially the beginners will benefit from it.
Pascal essential
Chapter 1 Pascal History Review
Object-oriented Pascal programming languages used in Delphi is not Borland issued a visual development environment Delphi in 1995, it is just a simple extension of the Borland Pascal product. Borland did not invent PASCAL, but it promoted and expanded Pascal.
This chapter is a short review of the historical background and its development history of the Pascal language.
Voss's Pascal
Pascal Language was originally designed by Professor Niklaus Wirth in Zurich Institute of Technology in 1971, as an Algol Language (1960) simplified the purpose of teaching purposes.
When designing PASCAL, many programming language already exists, but only Write languages such as Fortran, C, Assembler, COBOL are widely used. The soul of this new language is its language rules. The management of Pascal language rules is achieved through strong data type concept, mandatory data type declaration and program structure control control, the original intention of design PASCAL is to want to put this Teaching tools for language design courses.
Turbo Pascal
In 1983, Borland launched the world-famous Pascal compiler - Turbo Pascal, which realizes Jensensen & Wirth to make ideas raised in "Pascal User Manual and Report". Due to both simple functions, Turbo Pascal has become one of the best-selling compilers at the time, and is very popular on the PC platform.
In this development environment, Turbo Pascal adds the code in this development environment. You can edit the code in the WordStar's text editor. You can run the compiler, check the compile error and jump back to the built-in row. in. It sounds the above functions seems to be slight, but before turbo pascal, you have to quit the code editor to return to DOS, then run the command line compiler, write down the wrong line, and then open the editor to jump to the wrong line, very cumbersome.
In addition, Borland's Turbo Pascal is priced at $ 49, while Microsoft's Pascal compiler sells hundreds of dollars. Turbo Pascal has been successfully achieved by Microsoft eventually abandoned the Pascal compiler product.
Pascal in Delphi
As the Turbo Pascal compiler released from the ninth edition, the Pascal language has been continuously developed. In 1995, Borland released Delphi to make Pascal a visual programming language.
Delphi expands the Pascal language in many ways, including many object-oriented extensions, which differ from Object Pascal, and Delphi also improves the performance of the Borland Pascal With Objects compiler.
