c# - 获取对类的引用并仅从字符串值执行静态方法？

Question

如何获取带有字符串的静态类的实例？

例子:

class Apple : IFruit{    public static Apple GetInstance() { ... }    private Apple() { }    // other stuff}class Banana : IFruit{    public static Banana GetInstance() { ... }    private Banana() { }    // other stuff}// Elsewhere in the code...string fruitIWant = "Apple";IFruit myFruitInstance = [What goes here using "fruitIWant"?].GetInstance();

Answer 1

Type appleType = Type.GetType("Apple");
MethodInfo methodInfo = appleType.GetMethod(
                            "GetInstance",
                            BindingFlags.Public | BindingFlags.Static
                        );
object appleInstance = methodInfo.Invoke(null, null);

请注意，在 Type.GetType 中，您需要使用程序集限定名称。