学生成绩管理系统源代码

//成绩管理系统v2.0#include <stdio.h>#include <stdlib.h>#define N 30void Input (long num[],int score[],int n);void Totalave (int score[],int n);void Scoredes (long num[],int score[],int n,int (*compare)(int a,int b)); int Ascending (int a,int b);void Numas (long num[],int score[],int n);void Search (long num[],int score[],int n,int x);void statistis (long num[],int score[],int n);void List (long num[],int score[],int n);int main(){int n,score[N],c,x,i;long num[N];printf("输入学生人数");scanf("%d",&n);printf("1.Input record\n");printf("2.Caculate totel and average score of course\n");printf("3.Sort in descending order by score\n");printf("4.Sort in ascending order by number\n");printf("5.Search by number\n");printf("6.Statistic analysis\n");printf("7.List record\n");printf("0.Exit\n");printf("Please enter your choice:\n");printf("\n");for(;;){scanf("%d",&c);switch(c){case 1:Input (num,score,n);printf("Please enter your choice:\n");break;case 2:Totalave (score,n);printf("Please enter your choice:\n");break;case 3:Scoredes (num,score,n,Ascending);for(i=0;i<n;i++)printf("ID:%10ld,score:%d\n",num[i],score[i]);//以长整形打印用%ld printf("Please enter your choice:\n");break;case 4:Numas (num,score,n);printf("Please enter your choice:\n");break;case 5:printf("请输入查找学号\n");scanf("%d",&x);Search (num,score,n,x);printf("Please enter your choice:\n");break;case 6:statistis (num,score,n);printf("Please enter your choice:\n");break;case 7:List (num,score,n);Totalave (score,n);printf("Please enter your choice:\n");break;case 0:exit(0);}}return 0;}void Input (long num[],int score[],int n){int i;for(i=0;i<n;i++){printf("Input student's ID and score");scanf("%ld%d",&num[i],&score[i]);}}void Totalave (int score[],int n){int i,sum=0;double ave;for(i=0;i<n;i++)sum=sum+score[i];ave=(double)sum/n;printf("Caculate total=%d,average score of course=%f\n",sum,ave); }void Scoredes (long num[],int score[],int n,int(*compare)(int a,int b)){int i,j,k,t,h;for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if ((*compare)(score[j],score[k]))k=j;}if(i!=k){t=score[k],h=num[k];score[k]=score[i],num[k]=num[i];score[i]=t,num[i]=h;}}}int Ascending (int a,int b){return a<b;}void Numas (long num[],int score[],int n){int i,j,k,t,h;for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if (num[j]<num[k])k=j;}if(i!=k){t=score[k],h=num[k];score[k]=score[i],num[k]=num[i];score[i]=t,num[i]=h;}}for(i=0;i<n;i++)printf("ID:%10ld,score:%d\n",num[i],score[i]);//以长整形打印用%ld }void Search (long num[],int score[],int n,int x){int high=n-1,low=0,mid,c=0,pos,find=0,i,j,k,t,h;for(i=0;i<n;i++){k=i;for(j=i+1;j<n;j++){if (num[j]<num[k])k=j;}if(i!=k){t=score[k],h=num[k];score[k]=score[i],num[k]=num[i];score[i]=t,num[i]=h;}}while(find==0&&low<=high){mid=(high+low)/2;if(x>num[mid])low=mid+1;else if(x<num[mid])high=mid-1;else{pos=mid;find=1;}}if(find==0)printf("not find\n");else{for(i=0;i<n;i++){if(score[i]>score[pos])c++;}printf("ID:%10ld，order:%d,score:%d\n",num[pos],c+1,score[pos]);}}void statistis (long num[],int score[],int n){int a=0,b=0,c=0,d=0,e=0,i;double A,B,C,D,E;for(i=0;i<n;i++){if(score[i]>=90)a++;else if(score[i]>=80)b++;else if(score[i]>=70)c++;else if(score[i]>=60)d++;elsee++;}A=(double)a/n*100;B=(double)b/n*100;C=(double)c/n*100;D=(double)d/n*100;E=(double)e/n*100;printf("优秀人数%d,百分比:%f%%\n",a,A);printf("良好人数%d,百分比:%f%%\n",b,B);printf("中等人数%d,百分比:%f%%\n",c,C);printf("及格人数%d,百分比:%f%%\n",d,D);printf("不及格人数%d,百分比:%f%%\n",e,E); }void List (long num[],int score[],int n){int i;for(i=0;i<n;i++){printf("ID:%10ld,score:%d\n",num[i],score[i]);}}。

python超详细实现完整学⽣成绩管理系统⽬录学⽣成绩管理系统简介源代码students.txtmain.pyLogin.pydb.pyMenuPage.pyview.py学⽣成绩管理系统简介⼀个带有登录界⾯具有增减改查功能的学⽣成绩管理系统(⾯向对象思想，利⽤tkinter库进⾏制作，利⽤.txt⽂件进⾏存储数据)源代码仅供学习参考，最好还是⾃⼰多敲多练习(实践是检验真理的唯⼀标准) students.txt⽤于存储数据main.pyfrom tkinter import *from Login import *import tkinter as tkroot = ()root.title('欢迎进⼊学⽣成绩管理系统')LoginPage(root)root.mainloop()Login.pyfrom tkinter import *from tkinter.messagebox import *from MenuPage import *class LoginPage(object):def __init__(self, master=None):self.root = master # 定义内部变量rootself.root.geometry('%dx%d' % (300, 180)) # 设置窗⼝⼤⼩ername = StringVar()self.password = StringVar()self.createPage()def createPage(self):self.page = Frame(self.root) # 创建Frameself.page.pack()Label(self.page).grid(row=0, stick=W)Label(self.page, text='账户: ').grid(row=1, stick=W, pady=10)Entry(self.page, textvariable=ername).grid(row=1, column=1, stick=E)Label(self.page, text='密码: ').grid(row=2, stick=W, pady=10)Entry(self.page, textvariable=self.password, show='*').grid(row=2, column=1, stick=E) Button(self.page, text='登陆', command=self.loginCheck).grid(row=3, stick=W, pady=10) Button(self.page, text='退出', command=self.page.quit).grid(row=3, column=1, stick=E) def loginCheck(self):name = ername.get()password = self.password.get()if name == 'hacker707' and password == 'admin':self.page.destroy()MenuPage(self.root)else:showinfo(title='错误', message='账号或密码错误！')db.pyimport jsonclass StudentDB(object):def __init__(self):self.students = []self._load_students_data()def insert(self, student):self.students.append(student)print(self.students)def all(self):return self.studentsdef delete_by_name(self, name): # 删除数据for student in self.students:if name == student["name"]:self.students.remove(student)breakelse:return Falsereturn True# 查询def search_by_name(self, name):for student in self.students:if name == student["name"]:return student # 姓名+成绩else:return False# 修改def update(self, stu): # 修改数据name = stu["name"]for student in self.students:if name == student["name"]:student.update(stu)return Trueelse:return False# 加载⽂件def _load_students_data(self):with open("students.txt", "r", encoding="utf-8") as f:text = f.read()if text:self.students = json.loads(text)# 保存数据def save_data(self):with open("students.txt", 'w', encoding="utf-8") as f:text = json.dumps(self.students, ensure_ascii=False)f.write(text)db = StudentDB()MenuPage.pyimport tkinter as tkfrom view import *class MenuPage(object):def __init__(self, master=None):self.root = masterself.root.geometry('%dx%d' % (600, 400))self.create_page()self.input_page = InputFrame(self.root)self.query_page = QuerryFrame(self.root)self.delete_page = DeleteFrame(self.root)self.update_page = UpdateFrame(self.root)self.about_page = AboutFrame(self.root)self.input_page.pack()def create_page(self):# 创建菜单对象menubar = tk.Menu(self.root)# add_command 添加menubar.add_command(label="录⼊", command=self.input_data) # label menubar.add_command(label="查询", command=self.query_data) # label menubar.add_command(label="删除", command=self.delete_data) # label menubar.add_command(label="修改", command=self.update_data) # label menubar.add_command(label="关于", command=self.about_data) # label # 设置菜单栏self.root.config(menu=menubar)# 切换界⾯def input_data(self):self.input_page.pack()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack_forget()self.query_page.pack_forget()def query_data(self):self.input_page.pack_forget()self.query_page.pack()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack_forget()def update_data(self):self.input_page.pack_forget()self.update_page.pack()self.delete_page.pack_forget()self.about_page.pack_forget()self.query_page.pack_forget()def delete_data(self):self.input_page.pack_forget()self.update_page.pack_forget()self.delete_page.pack()self.about_page.pack_forget()self.query_page.pack_forget()def about_data(self):self.input_page.pack_forget()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack()self.query_page.pack_forget()view.pyimport tkinter as tkfrom db import dbfrom tkinter import ttk# 录⼊类class InputFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = master = tk.StringVar()self.math = tk.StringVar()self.chinese = tk.StringVar()self.english = tk.StringVar()self.status = tk.StringVar()self.create_page()def create_page(self):bel(self).grid(row=0, stick=tk.W, pady=10)bel(self, text="姓名:").grid(row=1, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=).grid(row=1, column=1, stick=tk.E)bel(self, text="数学:").grid(row=2, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.math).grid(row=2, column=1, stick=tk.E)bel(self, text="语⽂:").grid(row=3, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)bel(self, text="英语:").grid(row=4, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.english).grid(row=4, column=1, stick=tk.E)tk.Button(self, text="录⼊", command=self.recode_student).grid(row=5, column=1, stick=tk.E, pady=10) bel(self, textvariable=self.status).grid(row=6, column=1, stick=tk.E, pady=10)# 录⼊成绩def recode_student(self):student = {"name": .get(),"math": self.math.get(),"chinese": self.chinese.get(),"english": self.english.get(),} # ⼀个学⽣的成绩db.insert(student)# get()得到值# set()设置值self.status.set("插⼊数据成功！")self._clear_data()db.save_data()# 清空⽂本数据def _clear_data(self):.set("")self.math.set("")self.chinese.set("")self.english.set("")# 查询类class QuerryFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterself.create_page()# 创建查询界⾯def create_page(self):self.create_tree_view()self.show_data_frame()# grid()tk.Button(self, text="刷新数据", command=self.show_data_frame).pack(anchor=tk.E, pady=5) # Treeviewdef create_tree_view(self):# 表头columns = ("name", "chinese", "math", "english")self.tree_view = ttk.Treeview(self, show='headings', columns=columns)self.tree_view.column("name", width=80, anchor='center')self.tree_view.column("chinese", width=80, anchor='center')self.tree_view.column("math", width=80, anchor='center')self.tree_view.column("english", width=80, anchor='center')self.tree_view.heading("name", text='姓名')self.tree_view.heading("chinese", text='语⽂')self.tree_view.heading("math", text='数学')self.tree_view.heading("english", text='英语')self.tree_view.pack()# 显⽰数据def show_data_frame(self):# 删除原节点 map(int,值）for i in map(self.tree_view.delete, self.tree_view.get_children("")):pass# 拿到列表⾥⾯所有值、students[]students = db.all()# 同时拿到索引跟value值for index, stu in enumerate(students):self.tree_view.insert('', index, values=(stu["name"], stu["chinese"], stu["math"], stu["english"]))class DeleteFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)bel(self, text='删除数据').pack()self.status = tk.StringVar()self.de_name = tk.StringVar() # 获取删除学⽣的姓名self.create_page()# 创建界⾯def create_page(self):bel(self, text="根据姓名删除信息").pack(anchor=tk.W, padx=20)e1 = tk.Entry(self, textvariable=self.de_name)e1.pack(side=tk.LEFT, padx=20, pady=5)tk.Button(self, text='删除', command=self._delete).pack(side=tk.RIGHT)bel(self, textvariable=self.status).pack()# 删除def _delete(self):name = self.de_name.get()print(name)result = db.delete_by_name(name)if result:self.status.set(f'{name}已经被删')self.de_name.set("")else:self.status.set(f'{name}不存在')class UpdateFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterbel(self, text='修改界⾯').pack()self.change_frame = tk.Frame(self)self.change_frame.pack() = tk.StringVar()self.math = tk.StringVar()self.chinese = tk.StringVar()self.english = tk.StringVar()self.status = tk.StringVar()self.create_page()def create_page(self):bel(self.change_frame).grid(row=0, stick=tk.W, pady=10)bel(self.change_frame, text="姓名:").grid(row=1, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=).grid(row=1, column=1, stick=tk.E)bel(self.change_frame, text="数学:").grid(row=2, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.math).grid(row=2, column=1, stick=tk.E)bel(self.change_frame, text="语⽂:").grid(row=3, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)bel(self.change_frame, text="英语:").grid(row=4, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.english).grid(row=4, column=1, stick=tk.E)# 按钮tk.Button(self.change_frame, text='查询', command=self._search).grid(row=6, column=0, stick=tk.W, pady=10) tk.Button(self.change_frame, text='修改', command=self._change).grid(row=6, column=1, stick=tk.E, pady=10) bel(self.change_frame, textvariable=self.status).grid(row=7, column=1, stick=tk.E, pady=10)# 查询def _search(self):name = .get()student = db.search_by_name(name)if student:self.math.set(student["math"])self.chinese.set(student["chinese"])self.english.set(student["english"])self.status.set(f'查询到{name}同学的信息')else:self.status.set(f'没有查询到{name}同学的信息')# 更改成绩def _change(self):name = .get()math = self.math.get()chinese = self.chinese.get()english = self.english.get()stu = {"name": name,"math": math,"chinese": chinese,"english": english,}r = db.update(stu)if r:self.status.set(f"{name}同学的信息更新完毕")else:self.status.set(f"{name}同学的信息更新失败")class AboutFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterself.create_page()def create_page(self):bel(self, text="关于本作品(⼈⽣苦短，我⽤python)").pack(anchor=tk.W)以上就是使⽤python实现学⽣成绩管理系统，如果有改进的建议，欢迎在评论区留⾔奥~这篇⽂章参加了csdn的活动，还请⼤家多多三连⽀持⼀下博主，你们的⽀持就是我创作的动⼒到此这篇关于python超详细实现完整学⽣成绩管理系统的⽂章就介绍到这了,更多相关python 学⽣成绩管理系统内容请搜索以前的⽂章或继续浏览下⾯的相关⽂章希望⼤家以后多多⽀持！。

#include<stdio.h>#include<string.h>#include<stdlib.h>#include<time.h>typedef struct student{ /*定义结构体*/char IDNumber[16];/*学号*/char FamilyName[16]; /*姓*/char GivenName[16]; /*名*/int sex; /*性别（0代表“女”，1代表“男”）*/int BirthYear; /*出生年*/int BirthMonth; /*出生月*/int BirthDay; /*出生日*/float score[4]; /*成绩*/float sum; /*总分*/float average; /*平均分*/}stu;typedef struct Lnode{student data;Lnode *next;}st, *linklist;/***************************************************************************/ struct tm* ptm;float Sumstu(linklist L);float Averstu(linklist L);float Sumstu(linklist L){ /*计算总分*/linklist s;s=L;int i;s->data.sum=0;for(i=0;i<=4;i++){s->data.sum+=s->data.score[i];}return (s->data.sum);}float Averstu(linklist L){linklist q;q=L;Sumstu(q);q->data.average=q->data.sum/4;return (q->data.average);}void TimeNow() /*获取系统时间*/{struct tm* ptm;long ts;int y,m,d,h,n,s;ts = time(NULL);ptm = localtime(&ts);y = ptm-> tm_year+1900; //年m = ptm-> tm_mon+1; //月d = ptm-> tm_mday; //日h = ptm-> tm_hour; //时n = ptm-> tm_min; //分s = ptm-> tm_sec; //秒}int Menu() /*菜单函数*/{int n;printf("\t\t\t\n\n\n\n欢迎使用学生成绩管理系统\n\n\t\t\t按任意键进入系统！");system("pause");system("cls");printf("************************************************************************* *\n");printf("\n\t\t\t学生成绩管理系统\n\t\t\t\t制作人陈光林(52101407)\n");printf("-------------------------------菜单(Menu)---------------------------------\n");printf("\n\t 1. Enter list 输入记录\n");printf(" \t 2. Delete a record from list 删除记录\n");printf(" \t 3. Print list 显示所有记录\n");printf(" \t 4. Search record on name 按照姓名查找记录\n");printf(" \t 5. Save the file 保存记录到文件中\n");printf(" \t 6. Load the file 从文件中读入记录\n");printf(" \t 7. Compute the score 计算所有学生的总分和均分\n");printf(" \t 8. Query by class 按班级查询显示学生总分\n");printf(" \t 9. Insert record to list 插入记录到表中\n");printf(" \t 0. Quit 退出系统\n");printf("---------------------------------------------------------------------------\n");printf("************************************************************************* ***\n");do{printf("\n\t\t\t 请选择你需要的操作(0—9):");scanf("%d",&n);}while(n<1||n>5); /*如果选择项不在1—9之间则重输*/return(n); /*返回选择项*/}/***************************************************************************/linklist initlist(void) /*建立一个空链表*/{linklist L=(linklist)malloc(sizeof(st));L->next=NULL;return NULL;}/*建立学生信息链表*/st *creastlist(linklist L){int i;float s;linklist p;for(;;){p=(linklist)malloc(sizeof(st)); /*开辟新的节点*/if(!p){printf("\n Out of memory.");return (L);}printf("请输入学生学号");scanf("%s",p->data.IDNumber);if(p->data.IDNumber[0]=='0') break;printf("请输入姓:");scanf("%s",p->data.FamilyName);printf("请输入名:");scanf("%s",p->data.GivenName);printf("请输入性别（0女/1男）:");scanf("%d",&p->data.sex);printf("请输入生日:");scanf("%d %d %d",&p->data.BirthYear, &p->data.BirthMonth,&p->data.BirthDay);printf("请输入成绩\n",4);s=0;for(i=0;i<4;i++){do{printf("score%d:",i+1);scanf("%f",&p->data.score[i]);if(p->data.score[i]<0 || p->data.score[i]>100)printf(" Data error,please enter again.\n");}while(p->data.score[i]<0 || p->data.score[i]>100);s=s+p->data.score[i];}p->data.sum=s;p->data.average=s/4;p->next=L;L=p;}return(L);}/****************************************************************************** *****************//*void creastlist(linklist L){st *p;linklist head=NULL;p=(linklist)malloc(sizeof(st));p=L;for(;;){printf("请输入学生学号：\n");scanf("%s",p->data.IDNumber);printf("请依次输入学生姓名:\n");scanf("%s%s",p->data.FamilyName,p->data.GivenName);printf("请输入出生年月日：\n");scanf("%d%d%d",p->data.BirthYear,p->data.BirthMonth,p->data.BirthDay);TimeNow();if(p->data.BirthYear>=ptm-> tm_year+1900){ printf("错误！学生年龄不能为负值！请重新输入！");continue;}else if(p->data.BirthMonth>=ptm-> tm_mon+1){printf("错误！学生年龄不能为负值！请重新输入！");continue;}else if(p->data.BirthDay>=ptm-> tm_mday){printf("错误！学生年龄不能为负值！请重新输入！");continue;}else{printf("请输入性别(0代表女，1代表男：\n");scanf("%d",p->data.sex);if(p->data.sex!=0||p->data.sex!=1) {printf("错误！学生年龄不能为负值！请重新输入！");continue;}else{printf("请分别输入外语、高数、C语言、马哲四门成绩：\n");scanf("%f%f%f%f",&p->data.score[0],&p->data.score[1],&p->data.score[2],&p->data.score[3]);p->next=head;head=p;}}}}*//*输出所有学生的信息*/void print(linklist head){linklist p;p=head;printf("************************************************************************* *");printf("| 学号| 姓名|性别|出生年月日|外语C语言高数马哲|总分|平均分|");printf("--------------------------------------------------------------------------");Sumstu(p);Averstu(p);while(p!=NULL){printf("%s%s%s%d%d%d%f%f%f%f%f%f",p->data.IDNumber,p->data.FamilyName,p->dat a.GivenName,p->data.sex,p->data.BirthYear,p->data.BirthMonth,p->data.BirthDay,p->data.score[0],p->data.score[1],p->data.score[2],p->data.score[3],p->data.sum,p->data.average) ;printf("\n");p=p->next;}printf("\n");}/****************************************************************************** **************/void insert(linklist L){ //插入新的结点linklist s,p=L;stu e;s=(linklist)malloc(sizeof(st));s->data=e; //头插法s->next=p->next;p->next=s;}/****************************************************************************** *************/void search(linklist L){int flag=1;char familyname[16];linklist p;printf("请输入要查询的学生姓名:\n");scanf("%s",familyname);p=L->next;while(p!=NULL){if(strcmp(familyname,p->data.FamilyName)==0){system("cls");Sumstu(p);Averstu(p);printf("************************************************************************* *");printf("| 学号| 姓名|性别|出生年月日|外语C语言高数马哲|总分|平均分|");printf("--------------------------------------------------------------------------");printf("%s%s%s%d%d%d%f%f%f%f%f%f",p->data.IDNumber,p->data.FamilyName,p->data.Gi venName,p->data.sex,p->data.BirthYear,p->data.BirthMonth,p->data.BirthDay,p->data.score[0],p->data.score[1],p->data.score[2],p->data.score[3],p->data.sum,p->data.average);printf("\n");flag=0;break;}elsep=p->next;}if(flag)printf("没有该学生信息或输入错误");Menu();}/****************************************************************************** *************************/void Delete(linklist L){linklist p,q;char num[16];int label=1;printf("请输入要删除的学生学号：\n");scanf("%s",num);p=L->next;q=L;do{if(strcmp(num,p->data.IDNumber)==0){system("cls");printf("\t发现要删除的学生信息,确认删除吗？\n");printf("\t\t确认（Y）取消（N）");getchar();if('y'||'Y'){q->next=p->next;delete p;printf("删除成功！");label=0;}else{exit(0);}}else{q=q->next;p=q->next;}} while(q->next!=NULL);if(label)printf("输入错误或者信息不存在！");}/****************************************************************************** ***************************/void Paixu(linklist L){linklist p;float s1=90,s2=80,s3=70,s4=60;p=L;int i;for(i=0;i<=4;i++){printf("****************************************************");printf("第%d科90分以上的学生：",i);if(p->data.score[i]>=s1){ printf("%s%s%s%f",p->data.IDNumber,p->data.FamilyName,p->data.GivenName, p->data.score[i]);}else{p=p->next;}if(s2<=p->data.score[i]<s1){ printf("%s%s%s%f",p->data.IDNumber,p->data.FamilyName,p->data.GivenName, p->data.score[i]);}else{p=p->next;}if(s3<=p->data.score[i]<s2){ printf("%s%s%s%f",p->data.IDNumber,p->data.FamilyName,p->data.GivenName, p->data.score[i]);}else{p=p->next;}if(s4<=p->data.score[i]<s3){ printf("%s%s%s%f",p->data.IDNumber,p->data.FamilyName,p->data.GivenName, p->data.score[i]);}else{p=p->next;}if(p->data.score[i]<s4){ printf("%s%s%s%f",p->data.IDNumber,p->data.FamilyName,p->data.GivenName, p->data.score[i]);}else{p=p->next;}}}/***************************************************************************************************//*void Query(linklist L){ //此处假设学号形式为20101407linklist p;p=L;char classs[2];float sumclass;printf("请输入您想查询的班级：\n");scanf("%s",classs);do{sumclass=p->data.score[0]+p->data.score[1]+p->data.score[2]+p->data.score[3] ;printf("%s%f",p->data.IDNumber,p->data.sum);}while((strcmp(classs[1],p->data.IDNumber[5])==0)&&(strcmp(classs[2],p->data.IDNu mber[6])==0));}/****************************************************************************** ********************/void ComputeProject(linklist L){linklist p;float sumall[4],averall[4];float Su=0,Av=0;//sumall[4]={0,0,0,0};averall[4]={0,0,0,0};int i,m=0;p=L;for(i=0;i<=4;i++){for(p=L;p->next!=NULL;p=p->next){m++;sumall[i]+=p->data.score[i];}averall[i]=sumall[i]/4;printf("第%d科的平均成绩是：\n",averall[i]);Su+=averall[i];}Av=Su/4;printf("总的平均成绩是：%f\n",Av);}/****************************************************************************** ******************/void compute(linklist L){linklist p;p=L;Sumstu(p);Averstu(p);do{printf("学号：%s\n",p->data.IDNumber);printf("总分：%f\n平均分：%f\n",p->data.sum,p->data.average);p=p->next;}while(p->next!=NULL);}/****************************************************************************** **************/void insert(linklist L, stu e){ //插入新的结点linklist s,p=L;printf("请输入要插入的学生信息:\n");scanf("%s%s%s%d%d%d%f%f%f%f%f%f",p->data.IDNumber,p->data.FamilyName,p->data.Gi venName,p->data.sex,p->data.BirthYear,p->data.BirthMonth,p->data.BirthDay,p->data.score[0],p->data.score[1],p->data.score[2],p->data.score[3],p->data.sum,p->data.average);s=(linklist)malloc(sizeof(st));s->data=e; //头插法s->next=p->next;p->next=s;}/****************************************************************************** *************/void save(linklist L){FILE *fp;linklist p; /* 定义移动指针*/char out];scanf("%s",outfile);if((fp=fopen(outfile,"w"))==NULL) /*为输出打开一个二进制文件,为只写方式*/{printf("Cannot open the file\n");return; /*若打不开则返回菜单*/}p=L; /*移动指针从头指针开始*/while(p!=NULL) /*如p不为空*/{fwrite(p,sizeof(st),1,fp); /*写入一条记录*/p=p->next; /*指针后移*/}fclose(fp); /*关闭文件*/printf("Save the !\n");}/* 从文件读数据函数*/st *Load(linklist L){linklist p1,p2,head=NULL; /*定义记录指针变量*/FILE *fp; /* 定义指向文件的指针*/char in];scanf("%s",infile);if((fp=fopen(infile,"r"))==NULL) /*打开一个二进制文件,为只读方式*/{printf("Can not open the file.\n");return(head);}printf("\nLoading the file!\n");p1=(linklist)malloc(sizeof(st)); /*开辟一个新单元*/if(!p1){printf("Out of memory!\n");return(head);}head=p1;while(!feof(fp)) /*循环读数据直到文件尾结束*/{if(fread(p1,sizeof(st),1,fp)!=1) break; /*如果没读到数据,跳出循环*/p1->next=(linklist)malloc(sizeof(st)); /*为下一个结点开辟空间*/if(!p1->next){printf("Out of memory!\n");return (head);}p2=p1; /*使p2指向刚才p1指向的结点*/p1=p1->next; /*指针后移,新读入数据链到当前表尾*/}p2->next=NULL; /*最后一个结点的后继指针为空*/fclose(fp);printf("\nYou have success to read data from the file!\n");return (L);}/****************************************************************************** **************//****************************************************************************** ***************/void main(){linklist head=initlist();for(;;){switch(Menu()){case 1 :creastlist(head);case 2 :Delete(head);case 3 :print(head);case 4 :search(head);case 5 :save(head);//case 6 :load(head);case 7 :compute(head);//case 8 : Query(head);case 9 :insert(head);case 0 :exit(0);}}}。

学生绩点计算系统C语言(附完整源代码)本文档提供了一个用于计算学生绩点的C语言程序的完整源代码。

程序简介该程序是一个学生绩点计算系统，它可以读取学生的课程成绩和学分信息，并计算出每门课程的绩点以及整个学期的绩点。

该程序可以帮助学生快速准确地计算自己的绩点，以便了解自己在学业上的表现。

源代码以下是该程序的完整源代码：include <stdio.h>int main() {int numCourses;float totalCredits = 0;float totalGradePoints = 0;printf("请输入您的课程数量：");scanf("%d", &numCourses);for (int i = 0; i < numCourses; i++) {int credits;float grade;printf("请输入第%d门课的学分：", i + 1); scanf("%d", &credits);printf("请输入第%d门课的成绩：", i + 1); scanf("%f", &grade);totalCredits += credits; totalGradePoints += credits * grade;}float gpa = totalGradePoints / totalCredits;printf("\n您的绩点为：%.2f\n", gpa);return 0;}该程序首先会要求用户输入课程数量，然后逐一询问每门课程的学分和成绩。

程序会根据用户输入的数据计算出总学分和总绩点，并最终计算出绩点(GPA)，并将结果输出。

使用方法1. 运行该程序；2. 按照提示输入课程数量；3. 按照提示逐一输入每门课程的学分和成绩；4. 程序将会输出您的绩点(GPA)。

系统源代码一、登录界面代码using System；using System.Data；using System。

Configuration；using System。

Collections；using System.Web；using System.Web。

Security；using System。

Web.UI;using System。

Web。

UI。

WebControls;using System.Web。

UI.WebControls。

WebParts;using System。

Web.UI.HtmlControls；using System.Data。

SqlClient；public partial class login ：System.Web。

UI。

Page｛protected void txtid_Click（object sender，EventArgs e）｛txtid.Text = ”";txtpassword。

Text = ””；｝protected void Button1_Click（object sender, EventArgs e）{string strconn = ConfigurationManager。

AppSettings[”connStr”];SqlConnection conn = new SqlConnection(strconn)；conn。

Open（);DataSet ds=new DataSet （）；SqlDataAdapter da = new SqlDataAdapter（"select * from users where userid=’" + txtid。

Text + "' and userpwd=’” + txtpassword.Text + ”’", conn）;da.Fill(ds）;if (ds。

学生成绩管理系统源代码#include<iostream>#include<fstream>#include<string>usingnamespace std;struct Stu_score{int num;int mark[3];string name;Stu_score*next;float aver;};class Student{private:Stu_score*head;void Swap(Stu_score*,Stu_score*);void Print(Stu_score *);Stu_score*Find(int);public:Student(){head=NULL;}Stu_score*get_head(){return head;}int ListCount();void AddItem(int num,stringname,int mark[3]);void RemoveItem(int);void List();void Sort_by_num();void Sort_by_aver();void Search(int);int Average();};int Student::ListCount(){if(!head)return 0;Stu_score*p=head;int n=0;while(p){n++;p=p->next;}return n;}void Student::AddItem(int num,stringname,int mark[3]){if(!head){head=new Stu_score;for(int i=0;i<3;i++)head->mark[i]=mark[i];head->num=num;head->name=name;head->next=NULL;return;}Stu_score*t=head;while(t&&t->num!=num)t=t->next;if(t){cout<<"操作失败：学号为"<<"的记录已经存在！"<<endl;return;}Stu_score*p=head;while(p->next)p=p->next;Stu_score*p1=new Stu_score;p1->num=num;for(int i=0;i<3;i++)p1->mark[i]=mark[i];p1->name=name;p1->next=NULL;p1->next=p1;return;}void Student::RemoveItem(int num){Stu_score*t=Find(num);if(!t)return;Stu_score*p=head;if(head==t){head=head->next;delete p;cout<<"成功删除学号为"<<num<<"的记录!"<<endl<<endl;return;}while(p->next!=t)p=p->next;Stu_score*p1=p->next;p->next=p1->next;delete p1;cout<<"成功删除的学号为"<<num<<"的记录！"<<endl<<endl; return;}void Student::Print(Stu_score*p){cout.precision(3);cout<<p->num<<"\t\t";cout<<p->name<<"\t\t";cout<<p->mark[0]<<"\t"<<p->mark[1]<<"\t"<<p->mark[2]<<"\t"<<p->aver<<endl;return;}void Student::List(){if(ListCount()==0){cout<<"错误：当前的列表为空！"<<endl;return;}Stu_score*p=head;cout<<"共有记录："<<ListCount()<<endl;cout<<"学号\t\t姓名\t\t英语\t数学\t化学\t平均分"<<endl;while(p){Print(p);p=p->next;}cout<<endl;return;}void Student::Search(int num){cout<<"Searching...."<<endl;Stu_score*p=Find(num);if(p){cout<<"学号\t\t姓名\t\t英语\t数学\t化学\t平均分"<<endl;Print(p);}cout<<endl;}Stu_score*Student::Find(int num){if(ListCount()==0){cout<<"错误：当前的列表为空！"<<endl;return NULL;}Stu_score*p=head;while(p){if(p->num==num)break;p=p->next;}if(!p){cout<<"错误：找不到该记录！\n";return NULL;}return p;}void Student::Swap(Stu_score*p1,Stu_score*p2){int i;Stu_score*temp=new Stu_score;temp->num=p1->num;p1->num=p2->num;p2->num=temp->num;for(i=0;i<3;i++)temp->mark[i]=p1->mark[i];for(i=0;i<3;i++)p1->mark[i]=p2->mark[i];for(i=0;i<3;i++)p2->mark[i]=temp->mark[i];temp->name=p1->name;p1->name=p2->name;p2->name=temp->name;temp->aver=p1->aver;p1->aver=p2->aver;p2->aver=temp->aver;}void Student::Sort_by_num(){cout<<"sorting..."<<endl;if(ListCount()<2)return;Stu_score*temp=NULL,*p=NULL,*p1=NULL,*p2=NULL,*k=NULL;int n=ListCount(),i,j;p=head;for(i=1;i<n;i++){k=p;p1=p->next;for(j=0;j<n-i;j++){if(k->num>p1->num)k=p1;p1=p1->next;}if(p!=k)Swap(k,p);p=p->next;}cout<<"Complete successfully!"<<endl<<endl;return;}void Student::Sort_by_aver(){cout<<"Sorting..."<<endl;if(ListCount()<2)return;Stu_score*temp=NULL,*p=NULL,*p1=NULL,*p2=NULL,*k=NULL;int n=ListCount(),i,j;p=head;for(i=1;i<n;i++){k=p;for(j=0;j<n-j;j++){p1=k->next;if(k->aver<p1->aver)Swap(k,p1);k=k->next;}}cout<<"Complete successfully!"<<endl<<endl;return;}int Student::Average(){int i;if(ListCount()==0){cout<<"错误：当前的列表为空！"<<endl;return -1;}float sum,n=0;Stu_score*p=head;while(p){sum=0;for(i=0;i<3;i++)sum+=p->mark[i];p->aver=sum/3;p->next;n++;}return 0;}Student student;int Menu(){cout<<"================[主菜单]================"<<endl;int n=1,select=-1;cout<<n++<<".输入学生成绩；"<<endl<<endl;cout<<n++<<".按学号排序；"<<endl<<endl;cout<<n++<<".按学号查找记录；"<<endl<<endl;cout<<n++<<".删除有学号指定的记录；"<<endl<<endl;cout<<n++<<".列出所有记录；"<<endl<<endl;cout<<n++<<".按平均成绩排序输出；"<<endl<<endl;cout<<n++<<".从数据文件导入成绩；"<<endl<<endl;cout<<n++<<".将成绩导出到磁盘文件；"<<endl<<endl;cout<<"0.退出；"<<endl<<endl;cout<<"[请选择(输入相应数字）]:";cin>>select;return select;}char Exit(){char s;cout<<"确定要退出程序吗？[Y/N];";cin>>s;return s;}void Input(int*num,string*name,int mark[3]){cout<<"请输入学号："<<endl;cin>>*num;if(*num==-1)return;cout<<"请输入姓名英语数学化学："<<endl;cin>>*name>>mark[0]>>mark[1]>>mark[2];return;}void Sort_by_num(){student.Sort_by_num();}void AddNew(){int num=0,mark[3]={0};string name="";cout<<endl<<"当输入的学号为-1时表示结束输入."<<endl;Input(&num,&name,mark);while(num!=-1){student.AddItem(num,name,mark);student.Average();Input(&num,&name,mark);}return;}void DoFind(){int num;cout<<endl<<"当输入的学号为-1时表示结束输入."<<endl;do{cout<<"请输入要查找的学生的学号：";cin>>num;if(num==-1)continue;student.Search(num);}while(num!=-1);return;}void DoDelete(){cout<<endl<<"当输入的学号为-1时表示结束输入."<<endl;int num;do{cout<<"请输入要删除的学生的学号：";cin>>num;if(num==-1)continue;student.RemoveItem(num);}while(num!=-1);return;}void List(){student.List();}void ShowAverage(){student.Sort_by_aver();if(student.ListCount()==0){cout<<"错误：当前的列表为空!"<<endl;return;}int n=0;cout.precision(3);Stu_score*p=student.get_head();cout<<"学号"<<"\t姓名"<<"\t平均分"<<"\t排名"<<endl;while(p){cout<<p->num<<"\t"<<p->name<<":\t"<<p->aver<<"\t"<<++n<<endl;p=p->next;}return;}void Loadfromfile(){int num,mark[3];char name[20]="";fstreamiofile;int i=0;iofile.open("stud.dat",ios::in|ios::binary);if(!iofile){cout<<"数据文件不存在，请先建立该文件"<<endl;return;}if(iofile.eof()){cout<<"数据库为空，请添加数据"<<endl;iofile.close();}else{while(iofile.peek()!=EOF){iofile.read((char*)&num,sizeof(int));iofile.read((char*) name,20);iofile.read((char*)&mark[0],sizeof(int));iofile.read((char*)&mark[1],sizeof(int));iofile.read((char*)&mark[2],sizeof(int));student.AddItem(num,name,mark);}student.Average();iofile.close();}}void SaveToFile(){Stu_score*p;char name[20];fstreamiofile;int i=0;iofile.open("stud.dat",ios::out|ios::binary);if(!iofile){cerr<<"open error!"<<endl;abort();}p=student.get_head();while(p){p->name.copy(name,20,0);name[p->name.length()]=0;iofile.write((char*)&p->num,sizeof(int));iofile.write((char*)name,20);iofile.write((char*)&p->mark[0],sizeof(int));iofile.write((char*)&p->mark[1],sizeof(int));iofile.write((char*)&p->mark[2],sizeof(int));p=p->next;}iofile.close();}int main(){cout<<"Welcome!\n学生成绩管理系统\nVer 1.01\n\n\n";int select;char s;while(1){select=Menu();switch(select){case 0:s=Exit();if(s=='y'||s=='Y')return 0;break;case 1:AddNew();break;case 2:Sort_by_num();break;case 3:DoFind();break;case 4:DoDelete();break;case 5:List();break;case 6:ShowAverage();break;case 7:Loadfromfile();break;case 8:SaveToFile();break;default:cout<<"无效输入！"<<endl;}}system("pause");return 0;。

我是电大的学生，这是struct 类型的c 语言学生成绩管理系统代码，大家交流一下#include<stdio.h>#include<string.h> #include<stdlib.h>#define MAXN 100 //#define MAXN 100 //一个班最多的人数一个班最多的人数#define MAXM 2 //#define MAXM 2 //成绩的课程门数成绩的课程门数int R;void input(); //1.void input(); //1.学生成绩新建学生成绩新建void sort(); //2.void sort(); //2.学生成绩插入学生成绩插入void load(); //3.void load(); //3.学生成绩修改学生成绩修改void print(); //4.void print(); //4.学生成绩删除学生成绩删除void total(); //5.void total(); //5.学生成绩统计学生成绩统计void search(); //6.void search(); //6.学生成绩查询学生成绩查询void save(); //7.void save(); //7.学生成绩保存学生成绩保存void end(); //8.void end(); //8.结束结束struct student{char name[20]; //char name[20]; //保存全班姓名保存全班姓名保存全班姓名char num[12]; // char num[12]; //保存全班学号保存全班学号保存全班学号char man[20]; //char man[20]; //保存全班性别保存全班性别保存全班性别float score[MAXM]; //float score[MAXM]; //保存全班所有课程成绩保存全班所有课程成绩保存全班所有课程成绩 float sum; //float sum; //保存全班每个人的总成绩保存全班每个人的总成绩保存全班每个人的总成绩float avg; // float avg; //保存每个人的平均成绩保存每个人的平均成绩保存每个人的平均成绩};struct student s[MAXN];struct http{char subject[20]; //char subject[20]; //保存全班所有课程保存全班所有课程保存全班所有课程};struct http c[MAXM];void main() //void main() //欢迎首界面欢迎首界面欢迎首界面{ int select,l;system("color fC");printf("\n");printf("\n");printf("\n");printf("\n");printf(" printf(" ￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥\n"); \n"); printf(" * *\n"); printf(" * *\n"); printf(" * printf(" * 欢迎进入终极一班学生管理系统欢迎进入终极一班学生管理系统欢迎进入终极一班学生管理系统 *\n"); *\n"); printf(" * *\n"); printf(" * ︻┳═一︻┳═一︻┳═一 cf ... *\n"); cf ... *\n"); printf(" * printf(" * ┈━═☆甘总管的多塔生活∝╬══→┈━═☆甘总管的多塔生活∝╬══→┈━═☆甘总管的多塔生活∝╬══→ *\n"); *\n"); printf(" * *\n"); printf(" * printf(" * 凸凸^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸 *\n"); printf(" printf(" ￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥\n"); \n"); printf(" printf(" ╭ ╭ ╭ v v v╮╮ ╔══╗╔╗╔══╗╔╗ ╔╗╔╗╔╗╔╗╔╗╔╗ ╭╭''''''╮╮\n");printf(" (@ ^o^ @)╚╗╔╝║║╔═╦╦╦═╗║╚╝╠═╦╦╗(～ : : ～～)\n");printf(" (~) : (~)╔╝╚╗║╚╣║║║║╠╣╚╗╔╣║║║║(~) v (~)\n");printf(" ╚══╝╚═╩═╩═╩═╝ ╚╝╚═╩═╝ \n");printf("\n");printf("\n");printf(" printf(" 请按任意键进入下一界面请按任意键进入下一界面请按任意键进入下一界面\n"); \n");printf("------------------------------------------------------------------\n"); system("pause");system("color f2");system("color f1");system("color f3"); system("color fE");system("color fB");system("color f5");system("color f9");system("color f6");system("color f1");system("color f3");system("color fE");system("color fB");system("color f5");system("color f9"); system("color f6");system("color f1");system("color f3");system("color f5");system("color f9");system("color f6");system("color fD");system("pause");system("color fC");system("cls"); // system("cls"); //上面是第一个界面上面是第一个界面上面是第一个界面while(1){system("cls");printf(" ****************欢迎进入终极一班学生管理系统****************\n");printf(" ******************************************************\n");printf(" * ∝╬══→ 1.学生成绩新建 囧rz 欢 *\n");printf(" * ::======>> 2. 2.学生成绩插入学生成绩插入学生成绩插入 迎迎 *\n"); printf(" * printf(" * ┈━═☆┈━═☆┈━═☆ 3. 3.学生成绩修改学生成绩修改学生成绩修改 来来 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 4. 4.学生成绩删除学生成绩删除学生成绩删除 到到 *\n"); printf(" * ∝╬══→∝╬══→ 5. 5.学生成绩统计学生成绩统计学生成绩统计 英英 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 6. 6.学生成绩查询学生成绩查询学生成绩查询 雄雄 *\n"); printf(" * printf(" * ▄︻┻═┳▄︻┻═┳▄︻┻═┳ 7. 7.学生成绩保存学生成绩保存学生成绩保存 联联 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 8. 8.退出退出退出//撒拉嘿撒拉嘿 盟盟 *\n"); printf(" * ( printf(" * (⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙) *\n"); ) *\n");printf(" ******************************************************\n"); printf("\n"); printf("\n printf("\n"); printf("\n 请输入您的选择编号请输入您的选择编号请输入您的选择编号,,回车键继续：回车键继续：\n"); \n");printf("---------------------------------------------------------------------------\n"); scanf("%d",&select);do {if(select<1||select>8){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&select);}l=select;}while(l<1||l>8);switch(select) {case 1:input();break; //1. case 1:input();break; //1.学生成绩新建学生成绩新建学生成绩新建case 2:sort(); break; //2. case 2:sort(); break; //2.学生成绩插入学生成绩插入学生成绩插入case 3:load(); break; //3. case 3:load(); break; //3.学生成绩修改学生成绩修改学生成绩修改case 4:print(); break; //4. case 4:print(); break; //4.学生成绩删除学生成绩删除学生成绩删除case 5:total();break; //5. case 5:total();break; //5.学生成绩统计学生成绩统计学生成绩统计case 6:search();break; //6. case 6:search();break; //6.学生成绩查询学生成绩查询学生成绩查询case 7:save();break; //7. case 7:save();break; //7.学生成绩保存学生成绩保存学生成绩保存case 8: end();break; //8. case 8: end();break; //8.结束结束结束default:printf(" default:printf(" 请按相应数学选择系统功能：请按相应数学选择系统功能：请按相应数学选择系统功能："); ");}}}void input() //1学生成绩输入成绩模块成绩输入成绩模块{int i,j,b;float a=0;printf(" printf(" 请输入该班同学的人数：请输入该班同学的人数：请输入该班同学的人数：\n"); \n");printf(" printf(" 班同学的人数在班同学的人数在1~%d 之间：之间：\n",MAXN); \n",MAXN);scanf("%d",&R);do{if(R<1||R>100){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&R);}b=R;} while(b<1||b>100);for(i=0;i<MAXM;i++){printf(" printf(" 请输入该班同学的第请输入该班同学的第请输入该班同学的第%d %d 门课程名称为：门课程名称为：\n",(i+1)); \n",(i+1));scanf("%s", &c[i].subject);}for(i=0;i<R;i++){printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的姓名：个同学的姓名：\n",(i+1)); \n",(i+1)); scanf("%s",&s[i].name);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的学号：个同学的学号：\n",(i+1)); \n",(i+1));scanf("%s",&s[i].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(i+1)); scanf("%s",&s[i].man);printf(" printf(" 请依次输入请依次输入请依次输入%d %d 门学科的成绩：门学科的成绩：\n",MAXM); \n",MAXM);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",c[j].subject); \n",c[j].subject);scanf("%f",&s[i].score[j]);a=a+s[i].score[j];}s[i].sum=a;s[i].avg=s[i].sum/MAXM;a=0;}}void sort() //2学生成绩插入成绩模块模块{int i,j,k,b;float a=0;printf(" printf(" 请输入要插入的学生的位置请输入要插入的学生的位置1~%d 号：号：\n",R); \n",R);printf(" printf(" 第几个学生的位置之后：第几个学生的位置之后：第几个学生的位置之后：\n"); \n");scanf("%d",&k);do{if(k<1||k>R){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&k);}b=k;}while(b<1||b>R);R=R+1;for(i=R;i>k;i--){strcpy(s[i].name,s[i-1].name);strcpy(s[i].num,s[i-1].num);strcpy(s[i].man,s[i-1].man);s[i].sum=s[i-1].sum;s[i].avg=s[i-1].avg;for(j=0;j<MAXM;j++) {s[i].score[j]=s[i-1].score[j];}}printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的姓名：个同学的姓名：\n",(k+1)); \n",(k+1));scanf("%s",&s[k].name);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的学号：个同学的学号：\n",(k+1)); \n",(k+1));scanf("%s",&s[k].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(k+1)); scanf("%s",&s[k].man);printf(" printf(" 请依次输入请依次输入请依次输入%d %d 门学科的成绩：门学科的成绩：\n",MAXM); \n",MAXM);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",&c[j].subject); \n",&c[j].subject);scanf("%f", &s[k].score[j]);a=a+s[k].score[j];}s[k].sum=a;s[k].avg=s[k].sum/MAXM;}void load() //3学生成绩修改学生成绩修改 {int load1(); int load2();int select,index,b;while(1){printf("*************************************************************\n");printf(" * 1.按学号修改按学号修改 * * \n");printf(" * 2.按姓名修改按姓名修改 * * \n"); printf(" * 0.返回返回 * * \n");printf(" * 请输入您的选择编号：请输入您的选择编号： * * \n");printf("*************************************************************\n");scanf("%d",&select);do{if(select<0||select>2){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&select);}b=select;}while(b<0||b>2);switch(select){case 1:index=load1(); break;case 2:index=load2();break;case 0:return;}if(index!=-1){int i,j;float a=0,h[MAXM];i=index;printf(" printf(" 请输入请输入请输入%d %d 号的新学号：号的新学号： \n",i+1); \n",i+1);scanf("%s",&s[i].name);printf(" printf(" 请输入请输入请输入%d %d 号的新姓名：号的新姓名： \n",i+1); \n",i+1); scanf("%s",&s[i].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(i+1)); scanf("%s",&s[i].man);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",&c[j].subject); \n",&c[j].subject);scanf("%f",&h[j]);s[i].score[j] =h[j];a=a+s[i].score[j];}s[i].sum=a;s[i].avg=s[i].sum/MAXM;printf(" printf(" 修改成功。