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This tutorials aims to teach you how to create an error handler for your programs to deal with the clean-up operation when something in the code goes wrong. by：http://lee-mac.com/errorhandling.html ... 阅读全文
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Introduction This tutorial centers around various ways to prompt for user input with a default option available upon the user pressing Enter. By http://lee-mac.com/promptwithdefault.html Note 1: On... 阅读全文
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占位带修改 阅读全文
摘要：
This tutorial will give a brief overview of the defun function and moreover explain why localising variables is a good habit to get into. By http://lee-mac.com/localising.html (defun ([arguments] [... 阅读全文