CodinginDelphi1.写在前面的话.PDFVIP

Coding in Delphi 1. 写在前面的话 本次翻译纯属爱好，目的是提高对英文文档的理解和阅读能力，本文档大部分采用直 译的方式，而且保留了原来的英文。目的只是辅助大家理解，不喜勿喷。翻译的认为不正确 的，强烈的欢迎大家入群讨论(DIOCP 群: 320641073)一起翻译，衷心希望有英文功底加入进 行指导。 常驻翻译：Ryan, D10.天地弦 客串翻译：小生(骗术师)和DIOCP 群内的小伙伴。 友情审核：bp，逆水寒，爱国贼。 文档整理：D10.天地弦 此次翻译利用中午休息的时间进行的，大家每天在一起翻译一小段，然后讨论的方式， 力争每个词都理解到位。把他整理成PDF，希望能够帮到大家。 2. 异常和异常处理 2.1. 介绍 Added into Delphi back at the very beginning with Delphi 1, exception handling was a fundamental change to the way we thought about and wrote our code. 自delphi1 开始加入的异常处理，从根本上改变了我们的思考和代码编写的方式。 Unfortunately, despite almost twenty years of use, there are still many misconceptions and misunderstandings about how exceptions work and especially about how they should be used. 不幸的是 尽管使用了近20 年，对异常的原理特别怎么样使用方面还存在着很多的误解。 In this chapter, I’ll look at how exception handling should be done. 在这一章，我会着眼于应该怎样进行异常处理。 I’ll start out with examples of the wrong way to use and handle exceptions. 我会用错误的方式使用和处理异常的例子开始。 Using that as a base, I’ll then discuss proper ways for using exception handling. 依次为基础,我会讨论正确使用异常处理的方式。 Used improperly, exception handling can actually cause more problems and errors than it prevents. Used correctly, they can aid you in writing clean, well-designed code that is easy to maintain. I’ll assume that you are familiar with exception handling syntax, and the basics of how exceptions work. 使用不当，异常处理实际上会导致更多的问题和错误比预防。使用得当，他可以辅助你编写 干净的、设计巧妙且易于维护的代码。本章假定你已经熟悉的异常处理的语法和了解异常的 基本工作原理。 2.2. 结构化异常处理(SEH) An exception is a language feature that allows a programmer to stop execution of a process or thread immediately, but intercept that “stop” at any point in the call stack when necessary. Structured exception handling is a combination of language features and good design that makes use of exceptions in order to allow programmers to make useful assumptions when writing cod