c++封装链表实现-->学生信息管理分析系统
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//class.h 头文件 #include <string> #include <iostream> #include <iomanip> //实现setw()宽字节输出 using namespace std; class stuDate { public: struct student { string name; //姓名 string sex; //性别 int id; float eng,math,chinese,c,sum; struct student *next; }; }; class stuList :public stuDate { private: int num; //人数 struct student *head; public: stuList(); void _creat(); void _print(); void _sort(); }; stuList::stuList() { this->head=NULL; this->num=0; } void stuList::_creat() { char res = ‘Y‘; struct student *p1,*p2; p1=p2=new struct student; while(res==‘Y‘ || res == ‘y‘) { if(this->head == NULL) { this->head=p1; p1->id=0; } else { p2->next=p1; } cout<<"Name:"; cin>>p1->name; cout<<"Sex:"; cin>>p1->sex; cout<<"Chinese:"; cin>>p1->chinese; cout<<"Math:"; cin>>p1->math; cout<<"English:"; cin>>p1->eng; cout<<"C语言:"; cin>>p1->c; p1->id=this->num+1; p1->sum=p1->chinese+p1->math+p1->eng+p1->c; this->num++; p2=p1; p1=new struct student; cout<<"\n是否继续输入(Y/N):"; cin>>res; if(res ==‘N‘|| res == ‘n‘) break; } p2->next=NULL; } void stuList::_print() { struct student *temp; temp=this->head; cout<<"id"<<setw(5)<<"name"<<setw(5)<<"sex"<<setw(10)<<"Chinese"<<setw(5) <<"Math"<<setw(8)<<"English"<<setw(5)<<"C"<<setw(5)<<"Sum"<<endl; for(int i=0;i<this->num;i++) { cout<<temp->id<<setw(5)<<temp->name<<setw(5)<<temp->sex<<setw(5)<<temp->chinese<<setw(5) <<temp->math<<setw(5)<<temp->eng<<setw(5)<<temp->c<<setw(5)<<temp->sum<<endl; temp=temp->next; } cout<<endl; cout<<"------------------------------------------------------------总人数:"<<this->num; cout<<endl; } void stuList::_sort() { struct student *first; /*排列后有序链的表头指针*/ struct student *tail; /*排列后有序链的表尾指针*/ struct student *p_max; struct student *max; struct student *p; p=this->head; if(this->head!=NULL) { first=NULL; while (head != NULL) { for (p=this->head,max=this->head; p->next!=NULL; p=p->next) { if (p->next->sum > max->sum) //以总分排序 { p_max=p; max=p->next; } } if(first==NULL) { first=max; tail=max; } else { tail->next=max; tail=max; } if(max==this->head) { this->head=this->head->next; } else { p_max->next=max->next; } } if(first!=NULL) { tail->next=NULL; } cout<<"id"<<setw(5)<<"name"<<setw(5)<<"sex"<<setw(10)<<"Chinese"<<setw(5) <<"Math"<<setw(8)<<"English"<<setw(5)<<"C"<<setw(5)<<"Sum"<<endl; for(int i=0;i<this->num;i++) { cout<<first->id<<setw(5)<<first->name<<setw(5)<<first->sex<<setw(5)<<first->chinese<<setw(5) <<first->math<<setw(5)<<first->eng<<setw(5)<<first->c<<setw(5)<<first->sum<<endl; first=first->next; } } } //stu.cpp 调用class。h #include "class.h" int main() { stuList A; A._creat(); A._print(); A._sort(); return 0; }
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