实验四

#include<iostream>using namespace std;//基类 class MyArray{ public :MyArray(int leng);MyArray() {}~MyArray() ;void input();void display();protected: int *alist; int length;};MyArray::MyArray(int leng){    length=leng;      alist=new int[leng];}MyArray::~MyArray(){ delete [] this->alist;} void MyArray::input(){      cout<<"\t\t\t\t" ;     for(int i=0;i<length;++i)    cin>>alist[i];}void MyArray::display(){    cout<<"\t\t\t\t" ;     for(int i=0;i<length;++i)     cout<<alist[i]<<" ";      cout<<endl;}//排序派生类:class SortArray:virtual public MyArray{ public:SortArray() {}SortArray(int a):MyArray(a){} void paixu();};void SortArray::paixu(){   for(int i=0;i<length-1;++i)     for(int j=0;j<length-i-1;++j)  if(alist[j+1]<alist[j])  {int temp=alist[j];  alist[j]=alist[j+1];  alist[j+1]=temp;  }}//逆转派生类：class ReArray:virtual public MyArray{ public:ReArray() {}ReArray(int a):MyArray(a){} void nizhuan();};void ReArray::nizhuan(){    for(int i=0;i<length/2;++i)  { int temp=alist[i];     alist[i]=alist[length-1-i];  alist[length-1-i]=temp;  }}//求平均值派生类：class AverArray:virtual public MyArray{ public:AverArray() {}AverArray(int a):MyArray(a){} int Aver();};int AverArray::Aver(){    int sum=0;  for(int i=0;i<length;++i)  sum+=alist[i];  return sum/length;}//定义一个new类class NewArray:public SortArray,public ReArray,public AverArray{  public :   NewArray() {}  NewArray(int a):MyArray(a) {}};int main(){ //MyArray a(5);  //SortArray a(5);   // AverArray a(5);     NewArray a(5);  cout<<"\t\t\t\t输入原始数据"<<endl;   a.input(); cout<<"\t\t\t\t输出原始数据"<<endl;   a.display(); cout<<"\t\t\t\t进行排序"<<endl;   a.paixu(); cout<<"\t\t\t\t输出排序后的数据"<<endl;   a.display(); cout<<"\t\t\t\t进行逆转"<<endl;   a.nizhuan(); cout<<"\t\t\t\t输出逆转后的数据"<<endl;   a.display(); cout<<"\t\t\t\t输出其平均值"<<endl;  cout<<"\t\t\t\t" ;  cout<<a.Aver()<<endl;  system("pause"); //return 0;}