【求助】把对象数组当作普通数组进行排序失败
程序代码：#include<iostream>
#include<ctime>
#include<cstdlib>
#include<string>
using namespace std;
const string NAME[12]={"Sam","John","Peter","Lucy","Pierre","Antonio","Lillian","Fred","Mark","Hemingway","Carmen","Dan Dervish"};
double random(){
return double(rand())/RAND_MAX;//生成0-1之间的随机数
}//rand()%n
int random(int x){
return int(random()*(x-1)+0.5);
}
class Student{
private:
/*
学生资料，应包含
语文、数学、英语、科学、体育成绩、姓名、
历史成绩、是否曾评过三好生
*/
int ChineseScore,MathScore,EnglishScore,ScienceScore,PE;
int AllScore;
int HistoryScore;
string name;
bool is_Great;
public:
Student(){}
~Student(){cout<<"deleteing ..."<<name<<endl;}
//Student(const string& N,const int PE,const int& C,const int& M,const int& E,const int& S,const int &H,const bool Great):ChineseScore(C),MathScore(M),EnglishScore(E),ScienceScore(S),HistoryScore(H),is_Great(Great),name(N),PE(PE){AllScore=C+M+E+S+PE;}
void setup(const string& N,const int PE,const int& C,const int& M,const int& E,const int& S,const int &H,const bool Great);
const int Get_C(){return ChineseScore;}
const int Get_M(){return MathScore;}
const int Get_E(){return EnglishScore;}
const int Get_S(){return ScienceScore;}
const int Get_H(){return HistoryScore;}
const int Get_A(){return AllScore;}
const int Get_P(){return PE;}
string& Get_Name(){return name;}
bool Get_Great()const{return is_Great;}
void display();
};
void Student::display(){
cout<<"Name: "<<name<<" TotalPoints:"<<AllScore<<" Chinese:"<<ChineseScore<<" Math:"<<MathScore<<" English:"<<EnglishScore<<" Science:"<<ScienceScore<<endl
<<" PE:"<<PE<<" History:"<<HistoryScore<<" Is_Great:"<<is_Great<<endl;
cout<<endl;
}
//调用顺序：姓名、体育、语文、数学、英语、科学、历史、三好生
void Student::setup(const string& N,const int PE,const int& C,const int& M,const int& E,const int& S,const int &H,const bool Great){
ChineseScore=C;
MathScore=M;
EnglishScore=E;
ScienceScore=S;
HistoryScore=H;
is_Great=Great;
name=N;
this->PE=PE;
AllScore=C+M+E+S+PE;
}
class Manager{
Student* stu;
int Num;
int pass;
int size;
public:
Manager(int sz):Num(0),size(sz){buildup(sz);pass=Num/sz;}
~Manager();
int qsort(int,int);
void sort(int,int);
void exchange(int,int);
void buildup(int sz);
void work();
};
Manager::~Manager(){
delete[] stu;
}
//------------------------------注意下面这个函数----------------------------------------
void Manager::work(){
sort(0,size-1);
for(int i=0;i<size;i++){
stu[i].display();
}
}
//---------------------------以上的排序过程中调用了析构函数-----------------------------
void Manager::exchange(int x,int y){
Student t=stu[x];stu[x]=stu[y];stu[y]=t; //我已经知道了，是这里的t在函数结束时调用析构函数，但是排序还是失败，不知道为什么
}
int Manager::qsort(int p,int r){
int i=p-1,j;
for(j=p;j<r;j++){
if(stu[j].Get_A()>stu[r].Get_A()){
exchange(++i,j);
}
}
exchange(i+1,r);
return i+1;
}
void Manager::sort(int p,int r){
if(p<r){
int q=qsort(p,r);
sort(p,q);
sort(q+1,r);}
}
void Manager::buildup(int sz){
stu=new Student[sz];
int ChineseScore,MathScore,EnglishScore,ScienceScore,PE;
int HistoryScore;
string name;
bool is_Great;
//调用顺序：姓名、体育、语文、数学、英语、科学、历史、三好生
int x=70,y=40;
for(int i=0;i<sz;i++)
{
if(i%2==0){x=90;y=30;}else{x=70;y=40;}
ChineseScore=random(y)+x;
MathScore=random(y)+x;
EnglishScore=random(y)+x;
ScienceScore=random(90)+x;
PE=random(20)+10;
HistoryScore=random(80)+20;
name=NAME[random(10)];
if(random(10)>7)is_Great=true;
else is_Great=false;
stu[i].setup(name,PE,ChineseScore,MathScore,EnglishScore,ScienceScore,HistoryScore,is_Great);
stu[i].display();
Num+=stu[i].Get_A();
}
//测试方便，随机建立学生档案
}
int main(){
srand(time(NULL));
Manager manage(10);
//manage.work();
return 0;
}[ 本帖最后由 lyj123 于 2012-12-9 12:49 编辑 ]
