C # Determines whether a class has a "specified name" method

In C #, you can resolve this problem by reflection parsing the metadata, as shown in the following example code:

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usingSystem;usingSystem.Reflection;namespaceHello{    class Program    {        staticvoidMain(string[] args)        {            if(IsMethodDefined(typeof(Utils), "HelloWorld"))            {                Console.WriteLine("Utils类中有方法HelloWorld");            }            else            {                Console.WriteLine("Utils类中没有方法HelloWorld");            }            Console.ReadKey();        }                   /// <summary>        /// 判断一个类中有无"指定名称"的方法        /// </summary>        /// <param name="type"></param>        /// <param name="methodName"></param>        /// <returns></returns>        staticboolIsMethodDefined(Type type,stringmethodName)        {            boolresult = false;            foreach(MemberInfo m intype.GetMembers())            {                if(m.Name == methodName)                {                    result = true;                    break;                }            }            returnresult;        }    }    publicstaticclassUtils    {        publicstaticvoid HelloWorld()        {            Console.WriteLine("Hello World!");        }    }}

C # Determines whether a class has a "specified name" method