blocks|key|1468971|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1468972|first,+*rest+=+ex.split(/,+/)|code-block|syntax|javascript|1468973|现在first将是第一个值，rest将是数组的其余部分。|offset|length|style|CODE|1468974|entityMap^0|0|0|2|5|E|4|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

Try this:

<pre><code>first, *rest = ex.split(/, /)
</code></pre>

Now <code>first</code> will be the first value, <code>rest</code> will be the rest of the array.

blocks|key|1254295|text|你可能打错了几个字。从我收集到的信息来看，您可以从如下字符串开始：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1254296|string+=+"test1,+test2,+test3,+test4,+test5"|code-block|syntax|javascript|1254297|然后，您希望拆分它，以便只保留有意义的子字符串：|1254298|array+=+string.split(/,+/)|1254299|最后，您只需要除第一个元素之外的所有元素：|1254300|#+We+extract+and+remove+the+first+element+from+array
first_element+=+array.shift

#+Now+array+contains+the+expected+result,+you+can+check+it+with
puts+array.inspect|1254301|这回答了你的问题吗？|1254302|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

You probably mistyped a few things. From what I gather, you start with a string such as:

<pre><code>string = "test1, test2, test3, test4, test5"
</code></pre>

Then you want to split it to keep only the significant substrings:

<pre><code>array = string.split(/, /)
</code></pre>

And in the end you only need all the elements excluding the first one:

<pre><code># We extract and remove the first element from array
first_element = array.shift

# Now array contains the expected result, you can check it with
puts array.inspect
</code></pre>

Did that answer your question ?

blocks|key|1254310|text|ex="test1,test2,test3,test4,test5"
all_but_first=ex.split(/,/)[1..-1]|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1254311|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>ex="test1,test2,test3,test4,test5"
all_but_first=ex.split(/,/)[1..-1]
</code></pre>

blocks|key|1469043|text|ex.split(',',+2).last|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1469044|结尾处的2表示:分成2部分，而不是更多。|unstyled|1469045|通常情况下，split会将值分割为尽可能多的块，使用第二个值可以限制将获得的块的数量。使用ex.split(',',+2)将为您提供：|offset|length|style|CODE|1469046|["test1",+"test2,+test3,+test4,+test5"]|1469047|作为数组，而不是：|1469048|["test1",+"test2",+"test3",+"test4",+"test5"]|1469049|entityMap^0|0|0|19|G|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|V|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|W|8|@$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$B|C]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$B|C]]|$1|S|3|-4|5|F|7|12|8|@]|9|@]|A|$]]]|T|$]]

<pre><code>ex.split(',', 2).last
</code></pre>

The 2 at the end says: split into 2 pieces, not more.

normally split will cut the value into as many pieces as it can, using a second value you can limit how many pieces you will get. Using <code>ex.split(',', 2)</code> will give you:

<pre><code>["test1", "test2, test3, test4, test5"]
</code></pre>

as an array, instead of:

<pre><code>["test1", "test2", "test3", "test4", "test5"]
</code></pre>

blocks|key|1469096|text|如果你想将它们用作你已经知道的数组，否则你可以将它们中的每一个都用作不同的参数……试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1469097|parameter1,parameter2,parameter3,parameter4,parameter5+=+ex.split(",")|code-block|syntax|javascript|1469098|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

if u want to use them as an array u already knew, else u can use every one of them as a different parameter ...
try this :

<pre><code>parameter1,parameter2,parameter3,parameter4,parameter5 = ex.split(",")
</code></pre>

blocks|key|1469169|text|抱歉，聚会来晚了，没人提到drop方法，这让我有点惊讶：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1469170|ex="test1,+test2,+test3,+test4,+test5"
ex.split(",").drop(1).join(",")
=>+"test2,test3,test4,test5"|code-block|syntax|javascript|1469171|entityMap|0|LINK|mutability|MUTABLE|url|http://ruby-doc.org/core-1.8.7/Array.html#method-i-drop^0|D|4|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Sorry a bit late to the party and a bit surprised that nobody mentioned the <a href="http://ruby-doc.org/core-1.8.7/Array.html#method-i-drop" rel="noreferrer">drop</a> method:

<pre><code>ex="test1, test2, test3, test4, test5"
ex.split(",").drop(1).join(",")
=&gt; "test2,test3,test4,test5"
</code></pre>

blocks|key|1469201|text|您还可以执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1469202|String+is+ex="test1,+test2,+test3,+test4,+test5"
array+=+ex.split(/,/)
array.size.times+do+%7Ci%7C
++p+array[i]
end+|code-block|syntax|javascript|1469203|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can also do this:

<pre><code>String is ex="test1, test2, test3, test4, test5"
array = ex.split(/,/)
array.size.times do |i|
 p array[i]
end 
</code></pre>

blocks|key|1254569|text|尝试split(",")[i]，其中i是结果数组中的索引。split给出了下面的数组|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1254570|["test1",+"+test2",+"+test3",+"+test4",+"+test5"]+|code-block|syntax|javascript|1254571|其元素可通过索引访问。|1254572|entityMap^0|2|D|I|1|T|5|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

Try <code>split(",")[i]</code> where <code>i</code> is the index in result array. <code>split</code> gives array below

<pre><code>["test1", " test2", " test3", " test4", " test5"] 
</code></pre>

whose element can be accessed by index.

String is
<code>ex="test1, test2, test3, test4, test5"</code>

when I use 

<pre><code>ex.split(",").first
</code></pre>

it returns

<pre><code>"test1"
</code></pre>

Now I want to get the remaining items, i.e. `"test2, test3, test4, test5". If I use 

<pre><code>ex.split(",").last
</code></pre>

it returns only

<pre><code>"test5"
</code></pre>

How to get all the remaining items skipping first one?

How to split a string in Ruby and get all items except the first one?

字符串为ex="test1, test2, test3, test4, test5"当我使用ex.split(",").first它返回"test1"现在我想获取剩余的项，即`"test2，test3，test4，test5“。如果我使用ex.split(",").last它只返回"test5"如何获得所有剩余的项目跳...

问如何在Ruby中拆分一个字符串并获取除第一个以外的所有项？
EN

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