【转载】A Generic Class is a Template for a Class

A generic classs is a class that takes one or more type parameters, which it then uses in the definition of the class. It can be thought of as a template for a class.

1 public class ThingContainer<TParam>
2 {
3 　　private TParam theThing;
4 
5 　　public void SetThing(TParam newValue)
6 　　{
7 　　　　theThing = newValue;
8 　　}
9 }

You use a generic class by specifying a type for each of the type parameters.

1 ThingContainer<int> intContainer = new ThingContainer<int>();
2 intContainer.SetThing(5);
3 
4 ThingContainer<Dog> dogContainer = new ThingContainer<Dog>();
5 dogContainer.SetThing(new Dog("Kirby", 5));

In this example, we use a generic class to store an object of an arbitary type. We use one version of the class to store an int and another to store a Dog. Notice that wherever we use the name of the generic class to define an instance, we need to supply a typename (e.g. int, Dog) as a parameter.

【转载】A Generic Class is a Template for a Class,布布扣,bubuko.com

【转载】A Generic Class is a Template for a Class

原文：http://www.cnblogs.com/yuthreestone/p/3593422.html