从Ruby中查找内容和增量值

Question

我有json文件，其中包含以下平行线。 我需要找到并递增最后一个数字＆＃34; 1.39.25.1＆＃34;像红宝石代码那样1.39.25.2,1.39.25.3。

    "appVersion": {
    "buildFlavour": "varation",
    "customisation": "MY.VER.NUM",
    "version": "1.39.25.1"
},

请帮助解决此问题

Answer 1

String＃succ是一种快速简便的方法：

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="stylesheet"/>

<div class="test d-flex flex-column">
  <ul class="list-group h-100">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Morbi leo risus</li>
    <li class="list-group-item">Porta ac consectetur ac</li>
    <li class="list-group-item">Vestibulum at eros</li>
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Morbi leo risus</li>
    <li class="list-group-item">Porta ac consectetur ac</li>
    <li class="list-group-item">Vestibulum at eros</li>
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Morbi leo risus</li>
    <li class="list-group-item">Porta ac consectetur ac</li>
    <li class="list-group-item">Vestibulum at eros</li>
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Morbi leo risus</li>
    <li class="list-group-item">Porta ac consectetur ac</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
<div>

Answer 2

*others, last = "1.39.25.1".split(".")
[*others, last.next].join(".")
# => "1.39.25.2"