在数据中查找最接近的数字作为C# WPF中的类有错误吗？

public static int FindClosestNumber(List<int> numbers, int target)
{
    if (numbers == null || numbers.Count == 0)
    {
        throw new ArgumentException("数据集不能为空");
    }

    int closestNumber = numbers[0];
    int minDifference = Math.Abs(target - closestNumber);

    foreach (int number in numbers)
    {
        int difference = Math.Abs(target - number);
        if (difference < minDifference)
        {
            minDifference = difference;
            closestNumber = number;
        }
    }

    return closestNumber;
}

List<int> numbers = new List<int> { 1, 4, 7, 10, 13 };
int target = 8;

int closestNumber = FindClosestNumber(numbers, target);
Console.WriteLine("最接近的数字是：" + closestNumber);