转换一类的对象到另一个的 [英] Converting object of a class to of another one

问题描述

我有两个类具有相同，除了存储在其中的数据类型几乎相等。一类包含所有的双重价值，而其他包含所有浮点值。

I have two classes which have are nearly equal except the data types stored in them. One class contains all double values while other contains all float values.

class DoubleClass
{
    double X;
    double Y;
    double Z;
}

class FloatClass
{
    float X;
    float Y;
    float Z;
}

现在我有DoubleClass点，我要转换为FloatClass。

Now I have a point of DoubleClass which I want to convert to FloatClass.

var doubleObject = new DoubleClass();

var convertedObject = (FloatClass)doubleObject; // TODO: This

一个简单的方法就是让这将创建一个新的FloatClass对象的方法，填充所有值并将其返回。 。是否有任何其他有效的方式来做到这一点。

One simple way is to make a method which creates a new FloatClass object, fills all values and return it. Is there any other efficient way to do this.

推荐答案

使用一个转换操作符：

public static explicit operator FloatClass (DoubleClass c) {
   FloatCass fc = new FloatClass();
   fc.X = (float) c.X;
   fc.Y = (float) c.Y;
   fc.Z = (float) c.Z;
   return fc;
}

和则只是用它：

var convertedObject = (FloatClass) doubleObject;

修改

我改变了运营商明确而不是隐，因为我使用的是 FloatClass 投中的示例。我更喜欢使用明确在隐所以它迫使我确定什么类型的对象将转换成的 （对我来说意味着更少分心错误+可读性）。的

I changed the operator to explicit instead of implicit since I was using a FloatClass cast in the example. I prefer to use explicit over implicit so it forces me to confirm what type the object will be converted to (to me it means less distraction errors + readability).

不过，您可以使用隐转换，然后你只需要做的：

However, you can use implicit conversion and then you would just need to do:

var convertedObject = doubleObject;

的参考

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