如何创建简单的正则表达式

Question

how to create a regex to get numbers from a block online please tell me a good regex builder

    <div class="widget__header">
    <div class="stat-server-title">Players online:</div>
    <div class="stat-server-body"><b>2321</b></div>
    </div>
    <div class="right-stat-server season-stat-eng">

Answer 1

Not sure if this is what you want: but if you want to get the numbers from stat-server-body with a regex you can do: /<div.+class="stat-server-body"[^0-9]+([0-9]+)/

A little breakdown:

1. Starting with <div to match any div start.
2. Then everything in between until hitting class="stat-server-body"
3. Then searching all non-numeric chars behind it till hitting the numbers
4. And then grabbing all numbers behind it.

I like to use https://regex101.com/ for building/testing regexes, hope this helps.

Answer 2

If you want to get the number from the inner element it goes like this:

<b>(\d+)<\/b>

which the $1 (first group) will be the number 2321 regexr.com/6p0st