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下面的一段html怎么获取 from ，to ,subject的内容？

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澄wei
    12623

    <div id="rb"><div class="top-bottom"><div class="request-title">Request</div><div class="mailview-msg-ct"><div class="mailview-msg"><table class="props"><tbody><tr><td class="lbl">From:</td><td>"1136@qq.com" <1131384226@qq.com></td><td class="timestamp">Sent on 2023-06-05 05:24:11.000</td></tr><tr><td class="lbl">To:</td><td>niuxu <niu@ul.com></td><td> </td></tr><tr><td class="lbl">Subject:</td><td>test001</td><td> </td></tr><tr class="moreprops mp1 first"><td class="lbl">Content-Type:</td><td colspan="2">multipart/alternative;
    <span>  </span>boundary="----=_001_NextPart605424381086_=----"</td></tr><tr class="moreprops mp1"><td class="lbl">Message-ID:</td><td colspan="2"><202@qq.com></td></tr><tr class="moreprops mp1"><td class="lbl">Mime-Version:</td><td colspan="2">1.0</td></tr><tr class="moreprops mp1"><td class="lbl">X-GUID:</td><td colspan="2">7D307BD8-939E-43D5-91F0-1A639634E775</td></tr><tr class="moreprops mp1"><td class="lbl">X-Has-Attach:</td><td colspan="2">no</td></tr><tr class="moreprops mp1"><td class="lbl">X-Mailer:</td><td colspan="2">Foxmail 7.2.25.228[cn]</td></tr><tr class="moreprops mp1 last"><td class="lbl">X-Priority:</td><td colspan="2">3</td></tr><tr><td> </td><td colspan="2" style="padding-bottom: 10px;"><span onclick="javascript: reconShowHideMeta(this, 'mp1');" class="show-more">more</span></td></tr></tbody></table><div class="mbody"><body>
    <div>
    <span></span>test001
    </div>
    <div>


    </div>


    <div>
    <span>
    <div>

    <div>
 1131@qq.com
</div>

    </div></span>
    </div>
    </body></div></div></div></div></div>
    这是一段后端返回的html怎么拿到from,to,subject的内容。顺序会不一样，该怎么截取呀？或者有办法可以转化为json吗

    javascript前端
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    玛拉_以琳
      8.7k41542

      image.png

        let str = `
  <div id="rb"><div class="top-bottom"><div class="request-title">Request</div><div class="mailview-msg-ct"><div class="mailview-msg"><table class="props"><tbody><tr><td class="lbl">From:</td><td>"1136@qq.com" <1131384226@qq.com></td><td class="timestamp">Sent on 2023-06-05 05:24:11.000</td></tr><tr><td class="lbl">To:</td><td>niuxu <niu@ul.com></td><td> </td></tr><tr><td class="lbl">Subject:</td><td>test001</td><td> </td></tr><tr class="moreprops mp1 first"><td class="lbl">Content-Type:</td><td colspan="2">multipart/alternative;
<span>  </span>boundary="----=_001_NextPart605424381086_=----"</td></tr><tr class="moreprops mp1"><td class="lbl">Message-ID:</td><td colspan="2"><202@qq.com></td></tr><tr class="moreprops mp1"><td class="lbl">Mime-Version:</td><td colspan="2">1.0</td></tr><tr class="moreprops mp1"><td class="lbl">X-GUID:</td><td colspan="2">7D307BD8-939E-43D5-91F0-1A639634E775</td></tr><tr class="moreprops mp1"><td class="lbl">X-Has-Attach:</td><td colspan="2">no</td></tr><tr class="moreprops mp1"><td class="lbl">X-Mailer:</td><td colspan="2">Foxmail 7.2.25.228[cn]</td></tr><tr class="moreprops mp1 last"><td class="lbl">X-Priority:</td><td colspan="2">3</td></tr><tr><td> </td><td colspan="2" style="padding-bottom: 10px;"><span onclick="javascript: reconShowHideMeta(this, 'mp1');" class="show-more">more</span></td></tr></tbody></table><div class="mbody"><body>
<div>
<span></span>test001
</div>
<div>


</div>

<div>
<span>
<div>
<div>
 1131@qq.com
</div>
</div></span>
</div>
</body></div></div></div></div></div>
`
 function regex (str) {
    let reg = /(?<=<td( class=".*")*>)(.*?)(?=<\/td>)/g
    const list = str.match(reg)
      console.log(list);
    let obj = {
      From: [],
      To: [],
      Subject: []
    }

    list.forEach((item, index) => {
      if (item == 'From:') {
        obj.From.push(list[index + 1])
        obj.From.push(list[index + 2])
      } else if (item == 'To:') {
        obj.To.push(list[index + 1])
        obj.To.push(list[index + 2])
      } else if (item == 'Subject:') {
        obj.Subject.push(list[index + 1])
        obj.Subject.push(list[index + 2])
      }
    });

    return obj
  }
  let result = regex(str)
  console.log(result);
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