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saveFile.cpp
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219 lines (163 loc) · 3.32 KB
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#include"savefile.h"
#include<iostream>
#include"newstudents.h"
typedef linken* plinken;
using std::cout;
linken:: linken( students& student1)
{
next = NULL;
last = NULL;
mamber=student1;
#if DEBUG
cout << "in the init";
#endif // DEBUG
}
/*bool linken::operator=(linken sec)
{
this->last = sec.last;
this->mamber = sec.mamber;
this->next = sec.next;
return 1;
}*/
linken::linken(linken& link) :
last(link.last),
next(link.next),
mamber(link.mamber)
{
cout << mamber.name<<endl;
cout << "拷贝初始已经完成" << std::endl;
}
extern linken head;
void Getnext(linken &Linken,linken*PTR)
{
/*if (head.next == NULL)
{
head = Linken;
return;
}可以放到前面*/
//ptr就是head 所以要保证ptr不会随着while的变化而变化
/*if (PTR ->next== NULL)
{
PTR->next =& Linken;
Linken.last = PTR;
//Linken.next = NULL;
return;
}*/
//linken* linkptr = PTR, *Temp = NULL;
plinken linkptr = PTR;
//得到最后的有实际价值的指针//
while (linkptr->next != NULL)
{
//Temp = linkptr;
linkptr = linkptr->next;
}
linkptr->next = &Linken;
Linken.last = linkptr;
Linken.next = NULL;
}
void inital( linken &hard, string NAME, string XUEHAO, tm BORNTIMR, bool SEX, int CP, int MATH, int ENGLISH)
{
if (hard.next == NULL)
{
cout << "in save file1" << endl;
students temp1(NAME, XUEHAO, BORNTIMR, SEX, CP, MATH, ENGLISH);
linken *plink = new linken(temp1);
hard.next = plink;
plink->last = &hard;
}
//1.确定是指针的最后一个
auto *ptr =&hard;
while (ptr->next != NULL)
{
cout << "savefile.cpp. is run2" << endl;
ptr = (ptr->next);
}
if (ptr->next == NULL)
{
printf("ptr,next==nullptr");
students temp(NAME, XUEHAO, BORNTIMR, SEX, CP, MATH, ENGLISH);
linken* linkptr = new linken(temp);
cout << "we new a linken &linken,next==null" << linkptr->next<<endl << linkptr->last << endl;
ptr->next = linkptr;
linkptr->last = ptr;
}
}
AllScore& AllScore:: operator+(AllScore score)
{
English = score.English;
math = score.math;
Cp = score.Cp;
return *this;
}
AllScore::AllScore(double c, double m, double e)
:
Cp ( c),
math ( m),
English ( e)
{
}
bool swap(linken& left, linken& right)
{
if (left.next == NULL)
{
if (left.last == NULL)cout << "只有一个元素";
else
{
left.last->last = &right;
}
}
else {
left.next->last = &right;
}
if (right.next == NULL)
{
right.last->next = &left;
}
else
{
right.next->last = &left;
}
if (left.last != NULL && left.last != NULL)
{
left.next->last = &right;
left.last->next = &right;
}
//if (right.last != NULL && right.last != NULL)
//{
// right.next->last = &left;
// right.last->next = &left;
//}
auto tempnext = left.next;
auto templast = left.last;
left.last = right.last;
left.next = right.next;
right.next = tempnext;
right.last = templast;
return 1;
}
void DeleteLinken(linken& dot)
{
if (dot.last == NULL)// no last
{
if (dot.next == NULL)
;//1
else//have next
{
dot.next->last = NULL;//2
}
}
else//have last
{
if (dot.next == NULL)
{
dot.last->next =NULL;//3
}
else
{
dot.last->next = dot.next;
//4
dot.next->last = dot.last;
}
}
delete & dot;
}