关于C#Generic Collection的问题

Question

在下面的代码中,我们的字典类型是<int, Customer>,但我怎么知道Customer的类型是什么？看来客户是一个字符串,因为我们是客户cust1 =新客户(1,"客户1"); .... 我糊涂了...

 public class Customer
    {
        public Customer(int id, string name)
        {
            ID = id;
            Name = name;
        }

    private int m_id;

    public int ID
    {
        get { return m_id; }
        set { m_id = value; }
    }

    private string m_name;

    public string Name
    {
        get { return m_name; }
        set { m_name = value; }
    }
}

 Dictionary<int, Customer> customers = new Dictionary<int, Customer>();

Customer cust1 = new Customer(1, "Cust 1");
Customer cust2 = new Customer(2, "Cust 2");
Customer cust3 = new Customer(3, "Cust 3");

customers.Add(cust1.ID, cust1);
customers.Add(cust2.ID, cust2);
customers.Add(cust3.ID, cust3);

foreach (KeyValuePair<int, Customer> custKeyVal in customers)
{
    Console.WriteLine(
        "Customer ID: {0}, Name: {1}",
        custKeyVal.Key,
        custKeyVal.Value.Name);
}

Answer 1

甲Customer对象的类型Customer,虽然它由偶数int和一个string.当你正在调用时Customer cust1 = new Customer(1, "Cust 1");,真的说"让我成为一个Customer由整数1和字符串Cust 1组成的类型的对象"

Answer 2

类型Customer是Customer.A class是用户定义的类型,可以在命名字段中存储其他类型(另一种类型是a struct).

传递字符串的位置称为构造函数 - 一种设置新对象的特殊方法.在这里,它接受一个字符串并将其存储为客户的名称.