JSON数字正则表达式 [英] JSON numbers Regular Expression

问题描述

我正在尝试为JSON中的数字字符串编写正则表达式.我对编写正则表达式还不陌生，我在此处找到了一个用于JSON数字的机器图，但是我不确定如何攻击它.

I'm trying to write a regular expression for strings that are numbers in JSON. I'm still new to writing Regular expressions, I found a diagram of a machine for JSON numbers here , but I'm not sure how to attack it.

以下是正则表达式应找到的一些字符串. "22"， "55.75466"， "-44.565" "55e-2" "69234.2423432 E78" 感谢您的帮助！

Here are some strings that should be found by the regex. "22", "55.75466", "-44.565" "55e-2" "69234.2423432 E78" Any help is appreciated!

推荐答案

作为参考，下面是

与此匹配的正则表达式为:

The regex that should match this is:

-?(?:0|[1-9]\d*)(?:\.\d+)?(?:[eE][+-]?\d+)?

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