c# - C# 中的数组搜索

Question

我正在尝试搜索一个数组以查找另一个较小的数组值。我使用了嵌套循环，找到的值完美显示。但是，我还想打印未找到的值，任何人都可以帮助我改进我的代码，以便在循环中打印未找到的值，而不像我在代码中那样使用文字(代码块//改进代码)

希望大家能帮忙。

( class Program  
{
    static void Main(string[] args)
    {
        int[] intArray = { 5, 12, 0, 67, 75, 3, 27, 1, 98};
        int[] searchValues = { 0, 25, 99, 12, 3 };
        for (int i = 0; i < searchValues.Length; ++i)
        {
            for (int j = 0; j< intArray.Length; ++j)
            { 
                if (searchValues[i]== intArray[j])
                {
                    Console.WriteLine("The Value {0} Has been found in index {1} of intarray ", searchValues[i], j);
                }               
            }
            // improve the code
            if (i == 1 || i == 2)
            {
                Console.WriteLine("The Value {0} was Not found in intarray ", searchValues[i]);
            }
        }
        Console.Read();
    }
})

Answer 1

如果你在 foreach 上交换嵌套循环，你可以使代码更具可读性和 IndexOf功能。代码如下:

int[] intArray = { 5, 12, 0, 67, 75, 3, 27, 1, 98 };
int[] searchValues = { 0, 25, 99, 12, 3 };


foreach (var arr in searchValues)
{
     int index = Array.IndexOf(intArray, arr);
     if (index != -1)
           Console.WriteLine("The Value {0} Has been found in index {1} of intarray ", arr, index);
     else
           Console.WriteLine("The Value {0} was Not found in intarray ", arr);
 }

Console.ReadKey();