Chinese Enterprise C # Object-oriented--inheritance

 Public classShengwu {Private string_name;  Public stringName {Get{return_name;} Set{_name =value;} }        protected stringOld="1231";  Public voidshengming () {Console.WriteLine ("living creatures are alive.");        Console.WriteLine (old); }            }

 classDongwu:shengwu {Private string_dname;  Public stringDname {Get{return_dname;} Set{_dname =value;} }         Public voidHuidong () {Console.WriteLine ("animals can move ."); }    }

  class // Mammals     {            }

class Plant:shengwu  // plant     {        publicvoid   Guanghe ()    {        Console.WriteLine (" photosynthesis ");    }    }

namespaceChinese Enterprise C Object-oriented __ Inheritance {classProgram {Static voidMain (string[] args) {DONGWU Data=NewDongwu ();            Data.shengming (); Data. Name="Biological Name"; Data. Dname="Animal Name"; Mammal Ma=Newmammal ();            Ma.huidong (); ObjectOData = data;//all types of base classes, all types are subclasses of objectShengwu sdata= data;//subclasses can be converted directly to the parent class, but the parent class does not have the properties and methods of the child class. Console.WriteLine (sdata. Name);//You can only point out the name, not the dname, because name is the creature itself, and dname is the individual property of the mammal. //Parent Class The rotor class has the condition that the object of the parent class must be transformed by the object of a subclass to be converted back. Dongwu DW =NewDongwu (); SHENGWU SW=DW; Dongwu DDW=(DONGWU) SW; Console.WriteLine (DDW.             Name); //because the essence of P is a creature, it cannot be converted to a plant.            For example, the essence of P is that plants (formerly plants, which are still plants after they are converted to organisms) can be converted to plants. //Shengwu p = new Shengwu (); //Plant xdata = (Plant) p; //Console.WriteLine (xdata. Name);Console.ReadLine (); }    }}

Chinese Enterprise C # Object-oriented--inheritance