blocks|key|1270815|text|在System.Math+namespace中没有。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1270816|有一个MathHelper类，它可以用于XNA+game+studio，如果这恰好是您正在做的：|1270817|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.math_members.aspx|1|http://msdn.microsoft.com/en-us/library/bb197892(v=XNAGameStudio.31).aspx^0|1|B|1|L|0|0|3|A|K|F|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@$9|10|A|11|1|12]]|E|$]]|$1|H|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

There isn't one in the <a href="http://msdn.microsoft.com/en-us/library/system.math_members.aspx" rel="nofollow noreferrer"><code>System.Math</code> namespace</a>.
There is a <code>MathHelper</code> Class where it is available for the <a href="http://msdn.microsoft.com/en-us/library/bb197892(v=XNAGameStudio.31).aspx" rel="nofollow noreferrer">XNA game studio</a> if that happens to be what you are doing:

blocks|key|1056036|text|没有，但做一个也不是太难。我在这里找到了一个：clamp|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1056037|它是：|1056038|public+static+T+Clamp<T>(T+value,+T+max,+T+min)
++++where+T+:+System.IComparable<T>+{
++++++++T+result+=+value;
++++++++if+(value.CompareTo(max)+>+0)
++++++++++++result+=+max;
++++++++if+(value.CompareTo(min)+<+0)
++++++++++++result+=+min;
++++++++return+result;
++++}|code-block|syntax|javascript|1056039|它可以像这样使用：|1056040|int+i+=+Clamp(12,+10,+0);+->+i+==+10
double+d+=+Clamp(4.5,+10.0,+0.0);+->+d+==+4.5|1056041|entityMap|0|LINK|mutability|MUTABLE|url|http://www.codeproject.com/KB/cs/generic_clamp_function.aspx^0|N|5|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

There isn't one, but it's not too hard to make one. I found one here: <a href="http://www.codeproject.com/KB/cs/generic_clamp_function.aspx" rel="noreferrer">clamp</a>

It is:

<pre><code>public static T Clamp&lt;T&gt;(T value, T max, T min)
 where T : System.IComparable&lt;T&gt; {
 T result = value;
 if (value.CompareTo(max) &gt; 0)
 result = max;
 if (value.CompareTo(min) &lt; 0)
 result = min;
 return result;
 }
</code></pre>

And it can be used like:

<pre><code>int i = Clamp(12, 10, 0); -&gt; i == 10
double d = Clamp(4.5, 10.0, 0.0); -&gt; d == 4.5
</code></pre>

blocks|key|1270941|text|你可以写一个扩展方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1270942|public+static+T+Clamp<T>(this+T+val,+T+min,+T+max)+where+T+:+IComparable<T>
{
++++if+(val.CompareTo(min)+<+0)+return+min;
++++else+if(val.CompareTo(max)+>+0)+return+max;
++++else+return+val;
}|code-block|syntax|javascript|1270943|扩展方法放在静态类中-因为这是一个相当低级的函数，它可能应该放在项目中的某个核心命名空间中。然后，可以在包含名称空间的using指令的任何代码文件中使用该方法。|1270944|using+Core.ExtensionMethods

int+i+=+4.Clamp(1,+3);|1270945|.NET核心2.0|1270946|从.NET+Core2.0开始，System.Math现在有了一个可以替代使用的Clamp方法：|offset|length|style|CODE|1270947|using+System;

int+i+=+Math.Clamp(4,+1,+3);|1270948|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/dotnet/api/system.math.clamp?view=netcore-2.0^0|0|0|0|0|0|G|B|14|5|14|5|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|14|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|16|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|17|8|@$O|18|P|19|Q|R]|$O|1A|P|1B|Q|R]]|9|@$O|1C|P|1D|1|1E]]|A|$]]|$1|S|3|T|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|U|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

You could write an extension method:
<pre><code>public static T Clamp&lt;T&gt;(this T val, T min, T max) where T : IComparable&lt;T&gt;
{
 if (val.CompareTo(min) &lt; 0) return min;
 else if(val.CompareTo(max) &gt; 0) return max;
 else return val;
}
</code></pre>
Extension methods go in static classes - since this is quite a low-level function, it should probably go in some core namespace in your project. You can then use the method in any code file that contains a using directive for the namespace e.g.
<pre><code>using Core.ExtensionMethods

int i = 4.Clamp(1, 3);
</code></pre>
<h2>.NET Core 2.0</h2>
Starting with .NET Core 2.0 <code>System.Math</code> now has a <a href="https://docs.microsoft.com/en-us/dotnet/api/system.math.clamp?view=netcore-2.0" rel="noreferrer"><code>Clamp</code></a> method that can be used instead:
<pre><code>using System;

int i = Math.Clamp(4, 1, 3);
</code></pre>

blocks|key|1270964|text|尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1270965|public+static+int+Clamp(int+value,+int+min,+int+max)++
{++
++++return+(value+<+min)+?+min+:+(value+>+max)+?+max+:+value;++
}|code-block|syntax|javascript|1270966|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|$]]

Try:

<pre><code>public static int Clamp(int value, int min, int max) 
{ 
 return (value &lt; min) ? min : (value &gt; max) ? max : value; 
}
</code></pre>

blocks|key|1270968|text|只需使用Math.Min和Math.Max即可|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1270969|x+=+Math.Min(Math.Max(x,+a),+b);|code-block|syntax|javascript|1270970|entityMap^0|4|8|D|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Just use <code>Math.Min</code> and <code>Math.Max</code>:

<pre><code>x = Math.Min(Math.Max(x, a), b);
</code></pre>

blocks|key|1271009|text|使用前面的答案，我将其压缩为以下代码以满足我的需要。这也将允许您仅通过数字的最小或最大值来钳制数字。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1271010|public+static+class+IComparableExtensions
{
++++public+static+T+Clamped<T>(this+T+value,+T+min,+T+max)+
++++++++where+T+:+IComparable<T>
++++{
++++++++return+value.CompareTo(min)+<+0+?+min+:+value.ClampedMaximum(max);
++++}

++++public+static+T+ClampedMinimum<T>(this+T+value,+T+min)
++++++++where+T+:+IComparable<T>
++++{
++++++++return+value.CompareTo(min)+<+0+?+min+:+value;
++++}

++++public+static+T+ClampedMaximum<T>(this+T+value,+T+max)
++++++++where+T+:+IComparable<T>
++++{
++++++++return+value.CompareTo(max)+>+0+?+max+:+value;
++++}
}|code-block|syntax|javascript|1271011|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|$]]

Using the previous answers, I condensed it down to the below code for my needs. This will also allow you to clamp a number only by its min or max.

<pre><code>public static class IComparableExtensions
{
 public static T Clamped&lt;T&gt;(this T value, T min, T max) 
 where T : IComparable&lt;T&gt;
 {
 return value.CompareTo(min) &lt; 0 ? min : value.ClampedMaximum(max);
 }

 public static T ClampedMinimum&lt;T&gt;(this T value, T min)
 where T : IComparable&lt;T&gt;
 {
 return value.CompareTo(min) &lt; 0 ? min : value;
 }

 public static T ClampedMaximum&lt;T&gt;(this T value, T max)
 where T : IComparable&lt;T&gt;
 {
 return value.CompareTo(max) &gt; 0 ? max : value;
 }
}
</code></pre>

blocks|key|1056198|text|如果我想以min，max为单位验证参数的范围，我可以使用以下方便的类：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1056199|public+class+RangeLimit<T>+where+T+:+IComparable<T>
{
++++public+T+Min+{+get;+}
++++public+T+Max+{+get;+}
++++public+RangeLimit(T+min,+T+max)
++++{
++++++++if+(min.CompareTo(max)+>+0)
++++++++++++throw+new+InvalidOperationException("invalid+range");
++++++++Min+=+min;
++++++++Max+=+max;
++++}

++++public+void+Validate(T+param)
++++{
++++++++if+(param.CompareTo(Min)+<+0+%7C%7C+param.CompareTo(Max)+>+0)
++++++++++++throw+new+InvalidOperationException("invalid+argument");
++++}

++++public+T+Clamp(T+param)+=>+param.CompareTo(Min)+<+0+?+Min+:+param.CompareTo(Max)+>+0+?+Max+:+param;
}|code-block|syntax|javascript|1056200|这个类适用于所有IComparable类型的对象。我创建了一个有一定范围的实例：|offset|length|style|CODE|1056201|RangeLimit<int>+range+=+new+RangeLimit<int>(0,+100);|1056202|我既不能证实一个论点|1056203|range.Validate(value);|1056204|或者将参数限制在范围内：|1056205|var+v+=+range.Validate(value);|1056206|entityMap^0|0|0|8|B|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@$I|11|J|12|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

If I want to validate the range of an argument in [min, max], the I use the following handy class:

<pre class="lang-cs prettyprint-override"><code>public class RangeLimit&lt;T&gt; where T : IComparable&lt;T&gt;
{
 public T Min { get; }
 public T Max { get; }
 public RangeLimit(T min, T max)
 {
 if (min.CompareTo(max) &gt; 0)
 throw new InvalidOperationException("invalid range");
 Min = min;
 Max = max;
 }

 public void Validate(T param)
 {
 if (param.CompareTo(Min) &lt; 0 || param.CompareTo(Max) &gt; 0)
 throw new InvalidOperationException("invalid argument");
 }

 public T Clamp(T param) =&gt; param.CompareTo(Min) &lt; 0 ? Min : param.CompareTo(Max) &gt; 0 ? Max : param;
}
</code></pre>

The class works for all object which are <code>IComparable</code>. I create an instance with a certain range:

<pre class="lang-cs prettyprint-override"><code>RangeLimit&lt;int&gt; range = new RangeLimit&lt;int&gt;(0, 100);
</code></pre>

I an either validate an argument

<pre class="lang-cs prettyprint-override"><code>range.Validate(value);
</code></pre>

or clamp the argument to the range:

<pre class="lang-cs prettyprint-override"><code>var v = range.Validate(value);
</code></pre>

blocks|key|1271060|text|System.Math.Clamp|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1271061|如果你使用的是.NET+5，.NET+Core2.x，3.x...|unstyled|1271062|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>System.Math.Clamp
</code></pre>
is what you are looking for if you are on .NET 5, .NET Core 2.x, 3.x...

I would like to clamp a value <code>x</code> to a range <code>[a, b]</code>:

<pre><code>x = (x &lt; a) ? a : ((x &gt; b) ? b : x);
</code></pre>

This is quite basic. But I do not see a function "clamp" in the class library - at least not in <code>System.Math</code>.

(For the unaware to "clamp" a value is to make sure that it lies between some maximum and minimum values. If it’s greater than the max value, then it’s replaced by the max, etc.)

Where can I find the "clamp" function in .NET?

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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我希望将值x钳制为范围[a, b]x = (x < a) ? a : ((x > b) ? b : x);这是非常基本的。但是我没有在类库中看到函数"clamp“--至少在System.Math中没有。(对于不知道“钳位”的人来说，一个值是为了确保它位于一些最大值和最小值之间。如果它大于最大值，则将其替换为最大值，依此...

问在.NET中哪里可以找到"clamp“功能？
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问在.NET中哪里可以找到"clamp“功能？
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