C + + class and initialization

--c++ class and initialization

--------------------------------2014/09/04

1. The definition of a class (header file, declaration file) is considered an external interface of the class and is generally written as an. h header file.

2. The member function definition (source file) of a class is considered an internal implementation of the class and is generally written as a. cpp/.cc file.

member function definitions

return value class Name:: Function name (argument list) {

function body;}

Class definition

Class Name {

Member variables

member functions

}; --Notice there's a semicolon here .

See a simple example:

Student.h

#include <string>using namespacestd;classStudent { Public:        voidSet_name (stringv_name); voidSet_age (intv_age); voidSet_school_name (stringv_school_name); stringget_name (); intGet_age (); stringget_school_name ();Private:        stringname; intAge ; stringschool_name;};

student.cc

#include"student.h"voidStudent::set_name (stringv_name) {Name=V_name;} voidStudent::set_age (intv_age) { Age=V_age;} voidStudent::set_school_name (stringv_school_name) {School_name=V_school_name;} stringStudent::get_name () {returnname;} intStudent::get_age () {returnAge ;} stringStudent::get_school_name () {returnSchool_name;}

main.cc

#include <iostream>#include"student.h"using namespacestd;intMainintargcChar*argv[]) {Student*a=Newstudent (); A->set_name ("Jack"); A->set_age ( -); A->set_school_name ("Haford"); cout<<a->get_name () <<"  "<<a->get_age () <<"  "<<a->get_school_name () <<Endl;} 

compiling source files

main.cc student.cc--  source file compilation [[email protected] student]#.  Haford

C + + class and initialization