检查值是否在数组中(C#) [英] Check if a value is in an array (C#)

问题描述

如何检查一个值是否在 C# 中的数组中?

How do I check if a value is in an array in C#?

比如，我想创建一个包含打印机名称列表的数组.

Like, I want to create an array with a list of printer names.

这些将被提供给一个方法，该方法将依次查看每个字符串，如果字符串与数组中的值相同，则执行该操作.

These will be fed to a method, which will look at each string in turn, and if the string is the same as a value in an array, do that action.

例如:

string[] printer = {"jupiter", "neptune", "pangea", "mercury", "sonic"};
foreach (p in printer)
{
   PrinterSetup(p);     
}

这些是打印机的名称，它们被提供给 PrinterSetup 方法.

These are the names of the printers, they are being fed to the PrinterSetup method.

PrinterSetup 看起来像这样(一些伪代码):

PrinterSetup will look sort of like this (some pseudocode):

public void PrinterSetup(printer)
{
   if (printer == "jupiter") 
   {
      Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC");
   }
}

如何以 C# 可以识别的方式格式化 if (printer == "jupiter")?

How do I format if (printer == "jupiter") in a way that C# can recognize?

推荐答案

添加必要的命名空间

using System.Linq;

然后就可以使用linq的Contains()方法

Then you can use linq Contains() method

string[] printer = {"jupiter", "neptune", "pangea", "mercury", "sonic"};
if(printer.Contains("jupiter"))
{
    Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC"");
}

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