Automactically loading LSP files

AutCAD automatically loads four Autolisp files.

Acad2010.lsp and acad2010doc.lsp are reserved for Autocad use.

Acad.lsp and acaddoc.lsp are reserved for you, the user.

The Acad.lsp and Acad2010.lsp are loaded only once per AutoCAD session.

The Acad2010doc and Acad2010doc.lsp are loaded  in the initial session and then each time a drawing is opened.

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原文地址：https://www.cnblogs.com/InspiringMind/p/4125826.html