郭宇斐的专栏

张孝祥java就业培训教程(完整版电子书)(普通.rar 张孝祥讲解的java通俗易懂，容易理解。

jdk-1_5_0_04-windows-i586-p

学生管理系统程序 #include using namespace std; #include double avg=0;//统计总分和加平均分权 const int mathp=4;//数学学分 const int cppp=5;//C++学分 const sum=70;//设置总学分 class Student { private: int num; char *name; char *sex; char *phone; char *rphone; double math; double cpp; Student* next; public: Student() {next=NULL;} ~Student(); void Push(Student **refhead,int num,char *name,char *sex,char *phone,char *rphone,double math,double cpp); void Delete(Student *head,int data); Student* Find(Student* head,int data); void Display(Student* head); int Length(Student* head); void Math(Student* head,int data); void Update(Student* head,int data); void Insert(); }; Student* head=new Student;//带头结点的头指针 void Student::Push(Student **refhead,int num,char *name,char *sex,char *phone,char *rphone,double math,double cpp) { Student* newnode=new Student;//新增加结点 newnode->num=num; newnode->name=name; newnode->sex=sex; newnode->phone=phone; newnode->rphone=rphone; newnode->math=math; newnode->cpp=cpp; newnode->next=*refhead; *refhead=newnode;//重置表头 } //遍历 void Student::Display(Student* head) { Student* temp; temp=head; if(temp->next==NULL)//判断空表 cout<<"没有学生！"; else {while(temp!=NULL)// { cout<<"学号："<num<<"姓名："<name<<"性别："<sex<<"手机："<phone<<"宿舍电话："<rphone<<"数学成绩："<math<<"C++成绩:"<cpp<next; } } return; } //人数 int Student::Length(Student* head) { Student* cur; cur=head; int count=0; while(cur!=NULL) { count++;//通过累加统计人数 cur=cur->next; } return count; } //查找 Student* Student::Find(Student* head,int data) { Student* cur=head; bool bo=false; while(cur!=NULL) { if(cur->num=data) { bo=true;//如果找到则改变bo的值 cout<<"学号："<num<<"姓名："<name<<"性别："<sex<<"手机："<phone<<"宿舍电话："<rphone<<"数学成绩："<math<<"C++成绩:"<cpp<next; } if(bo==false)//通过判断bo的值判断找到与否 cout<<"没有这个人！"<num==data) break; else {bef=cur;cur=cur->next;} } if(cur==head)//如果是头结点则删除头结点 { head=cur->next; delete cur; } else { bef->next=cur->next; delete cur; } } //修改 void Student::Update(Student* head,int data) { Student* cur=head; bool bo=false; while(cur!=NULL) { if(cur->num==data) { bo=true; int a,b; char *c; double d; for(;;) //找到后提供各字段的修改 { cout<>a; switch(a) { case 1:cout<>b; cur->num=a; break; case 2:cout<>c; cur->name=c; break; case 3:cout<>c; cur->sex=c; break; case 4:cout<>c; cur->phone=c; break; case 5:cout<>c; cur->rphone=c; break; case 6:cout<>d; cur->math=d; break; case 7:cout<>d; cur->cpp=d; break; case 8:exit(1); break; default:cout<<"操作错误"; break; } } break; } } if(bo==false) cout<<"没有这个人！"<num=data) { bo=true; avg=cur->math*(mathp/sum)+cur->cpp*(cppp/sum);//计算总分和加平均分权的公式 break; } cur=cur->next; } if(bo==false){ cout<<"没有这个人！"<<endl; return; } cout<<"该生的总分和加平均分权="<<avg<<endl; return; } //录入 void Student::Insert() { head=NULL; int num; char name[8]; char sex[4]; char phone[11]; char rphone[7]; double math; double cpp; cout<<"请输入基本信息：\n"; cout<>num; cout<>name; cout<>sex; cout<>phone; cout<>rphone; cout<>math; cout<>cpp; Push(&head,num,name,sex,phone,rphone,math,cpp);//调用函数Push建立有序链表 } //用释构函数逐个释放空间 Student::~Student() { while(head!=NULL) { delete head; head=head->next; } } //程序主入口 void main() { for(;;) { head=NULL; Student s; int x; int data; cout<<"|1录入|2查找|3删除|4修改|5统计|6退出|\n"; cout<>x; switch(x) { case 1: start: s.Insert(); cout<>ch; if(ch=='y' || ch=='Y') goto start; s.Display(head); int l; l=s.Length(head); cout<<"一共有"<<l<<"个学生。"<<endl; break; case 2: cout<>data; s.Find(head,data); break; case 3: cout<>data; s.Delete(head,data); break; case 4: cout<>data; s.Update(head,data); break; case 5: cout<>data; s.Math(head,data); break; case 6: exit(1); break; default:cout<<"操作错误！"<<endl; break; } }}

自考软件工程心得体会 （一）纸上得来终觉浅，觉知此事要躬行（二）吾生也有涯，而知也无涯