To simplify the discussion, here we use a one-dimensional array
Method one: use only the Systemnamespace. command:using System;
using System;
namespace debug
{
class Program
{
static void Main(string[] args)
{
double[] array = new double[] {
0, 1, 2, 1, 7, 5, 4 };
// 先对array进行排序处理,注意 Array.Sort()函数处理后原函数本身顺序发生变化
// 默认按从小到大顺序排列
Array.Sort(array);
// 最小值就是第一个数据
Console.WriteLine($"The minimum value of array is {array[0]}");
// 最大值就是最后一个数据，注意索引从0开始，最后一个数据索引为array的长度减1
Console.WriteLine($"The minimum value of array is {array[array.Length - 1]}");
}
}
}
//The minimum value of array is 0
// The minimum value of array is 7
Of course, using this method, we can not only get the minimum value, but also the second smallest value, just change the index value.
Method 2: Use your own custom sorting function
using System;
namespace debug
{
class Program
{
static void Main(string[] args)
{
double[] array = new double[] {
0, 1, 2, 1, 7, 5, 4 };
// 直接调用我们需要的数组获取值
double minimum = Min(array);
double maximum = Max(array);
// 屏幕打印
Console.WriteLine($"The minimum value of array is {minimum}");
Console.WriteLine($"The minimum value of array is {maximum}");
}
// 定义自己的排序函数，但是要注意类型应该与我们需要使用的数组保持一致
public static double Max(double[] array)
{
double max = 0;
foreach (double element in array)
{
if (element > max)
{
max = element;
}
}
return max;
}
public static double Min(double[] array)
{
double min = 100;
foreach (double element in array)
{
if (element < min)
{
min = element;
}
}
return min;
}
}
}
//The minimum value of array is 0
// The minimum value of array is 7
Of course, this method is not very simple, because we need to define our corresponding types Maxand Minfunctions according to the type of array we want to study , but we can also use generics to solve this problem uniformly, so I won’t discuss too much here. , May be added later.
Method 3: Use System.Linqnamespace, command:using System.Linq;
using System;
using System.Linq;
namespace debug
{
class Program
{
static void Main(string[] args)
{
double[] array = new double[] {
0, 1, 2, 1, 7, 5, 4 };
// 直接调用我们需要的数组获取值
double minimum = array.Min();
double maximum = array.Max();
// 屏幕打印
Console.WriteLine($"The minimum value of array is {minimum}");
Console.WriteLine($"The minimum value of array is {maximum}");
}
}
}
//The minimum value of array is 0
// The minimum value of array is 7
Of course C#, there are other methods of obtaining extreme values in programming. Here are just three more common methods for obtaining extreme values.
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