blocks|key|849428|text|string+str+=+"money+makes+many+makes+things";
var+strArray+=+str.Split("+");
var+count+=+strArray.Count(x+=>+x+==+"makes");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|849429|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>string str = &quot;money makes many makes things&quot;;
var strArray = str.Split(&quot; &quot;);
var count = strArray.Count(x =&gt; x == &quot;makes&quot;);
</code></pre>

blocks|key|968307|text|您可以通过字符串/+string[]使字符串成为拆分。然后可以使用LINQ：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|968308|if(str.Split().Contains("makes"))
{
++++//+note+that+the+default+Split+without+arguments+also+includes+tabs+and+new-lines
}|code-block|syntax|javascript|968309|如果您不关心它是一个单词还是一个子字符串，您可以直接使用str.Contains("makes")。|968310|如果要以不区分大小写的方式进行比较，请使用Contains的重载。|968311|if(str.Split().Contains("makes",+StringComparer.InvariantCultureIgnoreCase)){}|968312|entityMap|0|LINK|mutability|MUTABLE|url|https://learn.microsoft.com/en-us/dotnet/api/system.string.split?view=net-6.0^0|A|8|O|2|0|0|0|S|L|0|L|8|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|O|3|P|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|Q|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

You can make a string a <code>string[]</code> by <a href="https://learn.microsoft.com/en-us/dotnet/api/system.string.split?view=net-6.0" rel="nofollow noreferrer">splitting</a> it by a character/string. Then you can use LINQ:
<pre><code>if(str.Split().Contains(&quot;makes&quot;))
{
 // note that the default Split without arguments also includes tabs and new-lines
}
</code></pre>
If you don't care whether it is a word or just a sub-string, you can use <code>str.Contains(&quot;makes&quot;)</code> directly.
If you want to compare in a case insensitive way, use the overload of <code>Contains</code>:
<pre><code>if(str.Split().Contains(&quot;makes&quot;, StringComparer.InvariantCultureIgnoreCase)){}
</code></pre>

blocks|key|849494|text|最简单的方法是使用Split扩展将字符串拆分为一个单词数组。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|849495|以下是一个例子：|849496|var+words+=+str.Split('+');

if(words.Length+>+0)
{
++++foreach(var+word+in+words)
++++{
++++++++if(word.IndexOf("makes",+StringComparison.InvariantCultureIgnoreCase)+!=+-1)
++++++++{
++++++++++++Console.WriteLine("found");
++++++++}
++++++++else
++++++++{
++++++++++++Console.WriteLine("not+found");
++++++++}+++
++++}+++
}|code-block|syntax|javascript|849497|现在，由于您只需要数字单词出现的计数，所以可以使用LINQ在如下的一行中这样做：|849498|var+totalOccurrences+=+str.Split('+').Count(x=>+x.IndexOf("makes",+StringComparison.InvariantCultureIgnoreCase)+!=+-1);|849499|注意，如果要进行不区分大小写的比较，则需要StringComparison.InvariantCultureIgnoreCase。|849500|entityMap^0|9|5|0|0|0|0|0|L|17|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|T|$]]

the simplest way is to use <code>Split</code> extension to split the string into an array of words.
here is an example :
<pre><code>var words = str.Split(' ');

if(words.Length &gt; 0)
{
 foreach(var word in words)
 {
 if(word.IndexOf(&quot;makes&quot;, StringComparison.InvariantCultureIgnoreCase) != -1)
 {
 Console.WriteLine(&quot;found&quot;);
 }
 else
 {
 Console.WriteLine(&quot;not found&quot;);
 } 
 } 
}
</code></pre>
Now, since you just want the count of number word occurrences, you can use LINQ to do that in a single line like this :
<pre><code>var totalOccurrences = str.Split(' ').Count(x=&gt; x.IndexOf(&quot;makes&quot;, StringComparison.InvariantCultureIgnoreCase) != -1);
</code></pre>
Note that <code>StringComparison.InvariantCultureIgnoreCase</code> is required if you want a case-insensitive comparison.

I am learning Dotnet c# on my own.
how to find whether a given text exists or not in a string and if exists, how to find count of times the word has got repeated in that string. even if the word is misspelled, how to find it and print that the word is misspelled?
we can do this with collections or linq in c# but here i used string class and used contains method but iam struck after that.
if we can do this with help of linq, how?
because linq works with collections, Right?
you need a list in order to play with linq.
but here we are playing with string(paragraph).
how linq can be used find a word in paragraph?
kindly help.
here is what i have tried so far.
<pre><code> string str = &quot;Education is a ray of light in the darkness. It certainly is a hope for a good life. Eudcation is a basic right of every Human on this Planet. To deny this right is evil. Uneducated youth is the worst thing for Humanity. Above all, the governments of all countries must ensure to spread Education&quot;;
 for(int i = 0; i &lt; i++)
 if (str.Contains(&quot;Education&quot;) == true)
 {
 
 Console.WriteLine(&quot;found&quot;);
 
 }
 else
 {
 Console.WriteLine(&quot;not found&quot;);
 }
</code></pre>

how to find text in a string in c#

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我自己正在学习Dotnet c#。如何查找给定文本是否存在于字符串中，如果存在，则如何查找单词在该字符串中重复的次数。即使这个单词拼错了，如何找到它并打印出拼写错误的单词呢？我们可以使用c#中的集合或linq来实现这一点，但是在这里，我使用string类并使用collections方法，但在此之后，iam触发了。如果我...

问如何在c#中查找字符串中的文本
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