正则表达式如何跨行提取？

Question

可以单独匹配到IP，也可以单独匹配到端口，但是合在一起就什么都匹配不到：

<tr class="">
      <td class="country"><img src="*" alt="Cn" /></td>
      <td>114.225.113.143</td>
      <td>808</td>
      <td>
        <a href="*">江苏无锡</a>
      </td>
      <td class="country">高匿</td>
      <td>HTTPS</td>
      <td class="country">
        <div title="0.161秒" class="bar">
          <div class="bar_inner fast" style="width:85%">
            
          </div>
        </div>
      </td>
      <td class="country">
        <div title="0.032秒" class="bar">
          <div class="bar_inner fast" style="width:98%">
            
          </div>
        </div>
      </td>
      
      <td>6小时</td>
      <td>18-05-21 08:52</td>
    </tr>

尝试了N中正则(\d\d\d\.\d\d\d\.\d\d\d\.\d\d\d)</td>[\s\S]<td>(\d+)</td>都不行，用(\d\d\d\.\d\d\d\.\d\d\d\.\d\d\d)可以匹配到IP，用<td>(\d+)</td>能匹配到端口号，但是合在一起就不行了

Answer 1

[\s\S]*

Answer 2

s 匹配换行