返回函数的几种类型

 返回对象的函数
#include<iostream.h>
class A
{
  int x;
public:
 A(int x){this->x=x;}
 void displayX(){cout<<x<<endl;}
};
A fun(int a){A obj(a); return obj;}
void main()
{int x; cin>>x;
 fun(x).displayX();
}
返回指针(地址)的函数1：
#include<iostream.h>
#include<string.h>
class Student
{
  int id;
  char name[10];
public:
 Student(int i,char *p)
 {id=i;
  strcpy(name,p);                                  //思考为什么name=n 不正确
 }
 int getID(){return id;}
 char *getName(){return name;}
};
void main()
{int i; char *n=new char[10];
 cin>>i; cin>>n;
 Student s1(i,n);
 cout<<s1.getID()<<endl;
 cout<<s1.getName ()<<endl;
}
返回指针(地址)的函数2：
#include<iostream.h>
#include<string.h>
class Student
{int grade[5];
 char name[10];
public:
 Student(int *g,char *n)
 {for(int i=0;i<5;i++)
   grade[i]=g[i];
  strcpy(name,n);
 }
 int *getG(){return grade;}
 char *getName(){return name;}
};
void main()
{int a[5]={100,80,90}; char b[10]="Smith";
Student s1(a,b);cout<<s1.getG()<<endl;
cout<<s1.getName ()<<endl;}