创建自定义类数组的示例

下面是类定义。

public class DummyUser
{
    public string email { get; set; }
    public string language { get; set; }
}

这是初始化数组的方法：

private DummyUser[] arrDummyUser = new DummyUser[]
{
    new DummyUser{
       email = "abc.xyz@email.com",
       language = "English"
    },
    new DummyUser{
       email = "def@email.com",
       language = "Spanish"
    }
};

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)"

var contacts = new[]
{
    new 
    {
        Name = " Eugene Zabokritski",
        PhoneNumbers = new[] { "206-555-0108", "425-555-0001" }
    },
    new 
    {
        Name = " Hanying Feng",
        PhoneNumbers = new[] { "650-555-0199" }
    }
};

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;
}

Enumerable.Repeat(String.Empty, count).ToArray()

将创建重复“count”次的空字符串数组。若您希望使用相同但特殊的默认元素值初始化数组。注意引用类型，所有元素都将引用同一对象。

如果您想初始化一个预先初始化的相等（非空或非默认）元素的固定数组，请使用以下命令：

var array = Enumerable.Repeat(string.Empty, 37).ToArray();

也请参加本次讨论。