如何评估一个IP? [英] How to evaluate an IP?

问题描述

如何确定字符串是否是IP地址?是 IPv4 还是 IPv6 ?

How can I determine if a string is an IP address? Either IPv4 or IPv6?

最少和最多的字符数是什么?

What is the least and most number of characters?

我认为这是一个正则表达式的答案.

I assume this would be a regex answer.

推荐答案

但问题并不像假设a.b.c.d那样简单...

But the question is not as simple as assuming a.b.c.d ... there are way more forms than you realised.

但是，这肯定是Google的问题吗?您几乎可以在任何使用IP的地方找到每个正则表达式入门！ ipv4 + regex 得分183,000！

But surely this is a Google for it question? Pretty much every regex primer you can find anywhere uses IP as an example! ipv4 + regex scores 183,000 hits!

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