我有这个:
[1] pry(main)> ip = ["123.456.789.666"]
=> ["123.456.789.666"]
[2] pry(main)> p ip
["123.456.789.666"]
=> ["123.456.789.666"]
我如何得到它以便它出来123.456.789.666?最终目标是采取我的阵列中的任何IP来ping。 ping失败,因为它正在ping“123.456.789.666”。
答案 0 :(得分:0)
您只能将IP作为字符串或IPAddr对象传递(但通常它将是<nav class="navbar navbar-default navbar-static-top">
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<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse ">
<!-- button, navbar mit dropmenu wenn bildschirm zu klein-->
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
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<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="index.php">TAIL
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</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-left">
<li>
<a href="templates.php">Templates</a>
</li>
<li> <a href="pricing.php">Pricing</a>
</li>
</ul>
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<li>
<a href="register.php">Sign Up
<span class="glyphicon glyphicon-user" id="userIcon"></span>
</a>
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<a href="login.php">Log In
<span class="glyphicon glyphicon-log-in" id="logIcon"></span>
</a>
</li>
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</div>
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</nav>
gem的字符串)。当主机指定为IP时,看起来这个gem存在一些问题。
如果您需要检查服务器的可用性 - 请使用系统net/ping
:
ping