Every time I write a summary, I think it is a headache, because I know that the summary is really important, and it almost directly determines the number of readers. It may take a lot of effort to write things, because the failure of the abstract
Introduction to regular expression Assertions, Assertions, forward Assertions, reverse Assertions, and regular expression Assertions
Assertions is hard to understand in the regular expression concept. It usually refers to a test conducted at the
Assertions (assertions) are difficult to understand in regular expression concepts, which usually refers to a test performed at the current match of the target string, but this test does not occupy the target string, nor does it move the current
Every time I write a summary I think it is a headache, because I know the abstract is really important, it almost directly determines the number of readers. May have spent 962 of tigers to write out something that because of the failure of the
The question is how to use assertion expressions in some scenarios, which are often misused, so I decided to write an article explaining when to use assertions and when not.
For those who are not clear about it, the python assert is used to check a
Analyze the situations in Python that require assertions and python
This problem is how to use an assertion expression in some scenarios. Someone may misuse it, so I decided to write an article to explain when to use assertion and when not to use it.
Release date: 9/9/2004 | update date: 9/9/2004
John RobbinsDownload the code in this article:Bugslayer0102.exe (42kb)
Content on this page
Debugger
Conditional compilation
Tracking and traceswitch
Original: http://blog.jobbole.com/76285/This document is translated by Bó Lè Online-the base Saint OMG. without permission, no reprint!English Source: Python maillist. Welcome to join the translation team.The question is how to use assertion
Defensive Programming is a useful auxiliary means to improve software quality technology. Its main idea is that subprograms should not be damaged by passing in error data, even the error data generated by other subprograms. The key to Defensive
1. Throw an exception
exceptions thrown by the Java run-time system
manually created and thrown as needed
artificially throwing an exception (must be thrown as an object of Throwable or its subclasses)
syntax Format: Throw exception class
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.