int[] array = new int[4]; 
array[0] = 10;
array[1] = 20;
array[2] = 30;

or

string[] week = new string[] {"Sunday","Monday","Tuesday"};

or

string[] array = { "Sunday" , "Monday" };

并且在多维阵列中

    Dim i, j As Integer
    Dim strArr(1, 2) As String

    strArr(0, 0) = "First (0,0)"
    strArr(0, 1) = "Second (0,1)"

    strArr(1, 0) = "Third (1,0)"
    strArr(1, 1) = "Fourth (1,1)"

hi只是为了添加另一种方式：从此页面：https://learn.microsoft.com/it-it/dotnet/api/system.linq.enumerable.range?view=netcore-3.1

如果您想生成0到9的指定范围内的整数序列，可以使用此表单：

using System.Linq
.....
public int[] arrayName = Enumerable.Range(0, 9).ToArray();

对于C#声明中的多维数组，请赋值。

public class Program
{
    static void Main()
    {
        char[][] charArr = new char[][] { new char[] { 'a', 'b' }, new char[] { 'c', 'd' } };

        int[][] intArr = new int[][] { new int[] { 1, 2 }, new int[] { 3, 4 } };
    }

}

对于以下类别：

public class Page
{

    private string data;

    public Page()
    {
    }

    public Page(string data)
    {
        this.Data = data;
    }

    public string Data
    {
        get
        {
            return this.data;
        }
        set
        {
            this.data = value;
        }
    }
}

您可以按如下方式初始化上述对象的数组。

Pages = new Page[] { new Page("a string") };

希望这有帮助。

创建和初始化对象数组的另一种方法。这与上面@Amol发布的示例类似，只是这一个使用了构造函数。一点点多态性洒了进来，我无法抗拒。

IUser[] userArray = new IUser[]
{
    new DummyUser("abc@cde.edu", "Gibberish"),
    new SmartyUser("pga@lna.it", "Italian", "Engineer")
};

上下文类：

interface IUser
{
    string EMail { get; }       // immutable, so get only an no set
    string Language { get; }
}

public class DummyUser : IUser
{
    public DummyUser(string email, string language)
    {
        m_email = email;
        m_language = language;
    }

    private string m_email;
    public string EMail
    {
        get { return m_email; }
    }

    private string m_language;
    public string Language
    {
        get { return m_language; }
    }
}

public class SmartyUser : IUser
{
    public SmartyUser(string email, string language, string occupation)
    {
        m_email = email;
        m_language = language;
        m_occupation = occupation;
    }

    private string m_email;
    public string EMail
    {
        get { return m_email; }
    }

    private string m_language;
    public string Language
    {
        get { return m_language; }
    }

    private string m_occupation;
}

带有表达式的平凡解决方案。注意，使用NewArrayInit，您可以只创建一维数组。

NewArrayExpression expr = Expression.NewArrayInit(typeof(int), new[] { Expression.Constant(2), Expression.Constant(3) });
int[] array = Expression.Lambda<Func<int[]>>(expr).Compile()(); // compile and call callback