C # console Basic function parameters are interface implementation of the interface class can be used as parameters, very useful

1. Code

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespaceconsoleapplication1{//for ease of viewing, I wrote the interfaces and classes in a. cs file .     Public InterfaceIsay {voidSay (); }    classStudent:isay { Public voidSay () {Console.WriteLine ("I am a student, my task is to learn"); }    }    classTeacher:isay { Public voidSay () {Console.WriteLine ("I am a teacher, my task is educating"); }    }    classProgram {Static voidMain (string[] args) {Introduce (NewStudent ()); Introduce (NewTeacher ());        Console.readkey (); }         Public Static voidintroduce (Isay h) {H.say (); }    }}

2. Effect

C # console Basic function parameters are interface implementation of the interface class can be used as parameters, very useful