我可以通过类型获取 C# 委托的签名吗？
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Can I get the signature of a C# delegate by its type?
提问by fastcall
Is there a straightforward way using reflection to get at the parameter list for a delegate if you have its type information?
如果您有委托的类型信息，是否有使用反射获取委托的参数列表的直接方法？
For an example, if I declare a delegate type as follows
例如，如果我声明一个委托类型如下
delegate double FooDelegate (string param, bool condition);
and later get the type information for that delegate type as follows
然后获取该委托类型的类型信息，如下所示
Type delegateType = typeof(FooDelegate);
Is it possible to retrieve the return type (double) and parameter list ({string, bool}) from that type info object?
是否可以从该类型信息对象中检索返回类型（double）和参数列表（{string, bool}）？
采纳答案by Marc Gravell
MethodInfo method = delegateType.GetMethod("Invoke");
Console.WriteLine(method.ReturnType.Name + " (ret)");
foreach (ParameterInfo param in method.GetParameters()) {
Console.WriteLine("{0} {1}", param.ParameterType.Name, param.Name);
}
