访问从另一个类C#
问题描述:
你好我有,因为在Java中,我用来做这在Java中访问从另一个类C#
public class Product
{
private double price;
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
}
public class Item
{
private int quantity;
private Product product;
public double totalAmount()
{
return product.getPrice() * quantity;
}
}
麻烦学习C#的对象字段或属性的总价()方法是用Java编写的示例我如何使用它来访问另一个类中的对象的值。我怎样才能实现在C#一样的东西,这是我的代码
public class Product
{
private double price;
public double Price { get => price; set => price = value; }
}
public class Item
{
private int quantity;
private Product product;
public double totalAmount()
{
//How to use a get here
}
}
我不知道我的问题是明确的,但基本上我想知道的是我怎么能达到获取或一组,如果我的对象是一个类的实际值?
答
首先,不使用表达浓郁属性此...只需使用自动属性:
public class Product
{
public double Price { get; set; }
}
最后,你没有明确访问消气,你刚才得到的值的Price
:
public double totalAmount()
{
// Properties are syntactic sugar.
// Actually there's a product.get_Price and
// product.set_Price behind the scenes ;)
var price = product.Price;
}
+0
我想你的意思是'product.Price' – Xiaoy312
+0
@ Xiaoy312是的,没错。谢谢:D –
答
您可以同时使用实现IR:
public class Product
{
public decimal Price { get; set; }
}
public class Item
{
public Product Product { get; set; }
public int Quantity { get; set; }
public decimal TotalAmouint
{
get
{
//Maybe you want validate that the product is not null here.
return Product.Price * Quantity;
}
}
}
'公共双总金额=> product.Price *量;'或旧的语法:'公共双总金额{{返回product.Price *量; }}' – Xiaoy312