Example analysis of the difference between static and dynamic method invocation in ES0en. net

// Defining static methods 
class SQLHelper   
    {
        public static string aaa()
        {
            return  "Hello "       
        }
    } 
 Call: 
SQLHelper.aaa(); //  The name of the class . The method name 

// Defining dynamic methods 
class SQLHelper   
    {
        public string aaa()
        {
            return  "Hello "       
        }
    }
 Call: 
SQLHelper  s =new SQLHelper ();
s.aaa();