autolisp程序入门教学资料（AutoLISP entry procedures of teaching materials）.doc

下载文档 降价啦

2
0
约1.42万字
约 22页
2017-08-16 发布于河南
举报
版权申诉
保障服务

autolisp程序入门教学资料（AutoLISP entry procedures of teaching materials）.doc

1、本文档共22页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

autolisp程序入门教学资料（AutoLISP entry procedures of teaching materials）

autolisp程序入门教学资料（AutoLISP entry procedures of teaching materials） Introduction to AutoLISP programs - resources material I. brief introduction of AutoLISP (advantages and disadvantages) AutoLISP language is the main tool for developing Autocad. It is the product of the organic combination of LISP language and Autocad. It plays an important role in the development and expansion of Autocad. It is because of the open architecture represented by AutoLISP that Autocad has been in an invincible position in many CAD software competitions. AutoLISP is an interpreted language, can be run directly in Autocad, rather than a compiled language with the help of the original program must be compiled and linked to the compiler to generate executable code modules, the user only needs the help of a text editor (such as DOSs EDIT program) can be programmed. AutoLISP (List Processing Language) is a kind of list processing language? Quot; table is the data structure of AutoLISP language unique, widely used in AutoLISP, the table is an effective method for a large amount of data stored in a variable. For example, in AutoCAD, three dimensional numbers (X, Y, Z) are used to represent 3D points in the form of a table. Two. The assignment method in AutoLISP Unlike most computer languages use infix method to represent program statements (expression) and the prefix . For example, in the C language, assign 125 to the real number X, and write it: X = 125; The operator = is placed between operands X and 125. And AutoLISP is written: (setq, X, 125) The operator setq is placed before operands X and 125. Setq is the most important assignment function of AutoLISP. Almost all of the variable assignments should be implemented according to quot, setq. Three. How do you add a new command to AutoCAD (or how to define a function)? Structure, composition and loading of general programs In the following example, we will understand the structure of the AutoLISP language general program, how to define a execut