将值与数组值进行比较 [英] compare avalue with an array values

问题描述

hiii全部

我有一个像这样的数组:

hiii all

i have an array like that:

<br />
int[] Departments = new int[4] { 2, 3, 4, 5 };<br />

并且我有另一个由用户输入的值.我想检查此值是否在数组值中.

我尝试过:

and i have another value entered by the user. i want to check if this value is in the array values or not.

i tried :

<br />
<pre lang="midl">if(x "Not IN" Departments)<br />
      {<br />
      }</pre><br />
<br />

但其中有一个错误.
请问有人可以帮助我吗?

谢谢

but there is an error in it.
can any body help me in that, please???

Thanks

推荐答案

尝试:

int[] Departments = new int[4] { 2, 3, 4, 5 };
if (Departments.Contains(3))
    {
    MessageBox.Show("Yes!");
    }

除了上述解决方案之外，您还可以尝试BinarySearch检查给定数组中是否存在值.
看看

In addition to above solution you can also try BinarySearch for checking value is present or not in given set of array.
take a look

int[] Departments = new int[4] { 2, 3, 4, 5 };
 if (Array.BinarySearch(Departments, 3) >= 0)
     {
     //Yes Present
     }

当然，如果要检查"not in"，并使用上面的示例Griff，它将是:

Of course, if you want to check for "not in", and using Griff''s example above, it would be:

if (!Departments.Contains(3))
{
   MessageBox.Show("The value 3 is not in Departments".")
}

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