学生综合测评系统.docx

1、学生综合测评系统# include # include stdlib.h # include string.h#include struct student *Read();void save(struct student *head);void sinput(struct student *p);struct student *input();void paixu_num(struct student *head);struct student *insert();struct student *alter();struct student *del();void find_num(stru

2、ct student *phead);void find_name(struct student *phead);void output();void min_student(struct student *phead);void max_student(struct student *phead);void ave_student(struct student *phead);void every_student(struct student *phead);void score_paixu(struct student *head);void help();void tj_menu(str

3、uct student *head);void find_menu(struct student *head);void menu();struct student/定义学生信息结构数组，用于学生信息输入 char number13; char name13; char sex4; char adds15; char phone14; char qq14; float chinese,math,english,txhp,pinde,teacher; int zcmc,ksmc; double ave,zc; struct student *next;#define Len sizeof(str

4、uct student)int len; /链表长度int a=0,b=0,c=0,d=0,e=0;/用来存放成绩各阶的人数char stu10;struct student *Read() /读取数据文件保存到链表中,返回指向此链表头指针 struct student *head=NULL; struct student *p1, *p2; FILE *fp; cout请输入你要打开的文件(.dat)stu; if(fp=fopen(stu,rb+)=NULL) cout打开文件出错！endl; exit(0); while(!feof(fp) if( (p1=(struct student

5、*)malloc(Len)=NULL ) cout内存申请出错next=p1; p2=p1; fclose(fp); return head;void save(struct student *head)/数据存盘 FILE *fp; struct student *p; p=head; cout请输入你要存进去的文件(.dat)stu; if(fp = fopen(stu, wb)=NULL) cout无法打开文件!endl; system(pause); menu(); while(p) if(fwrite(p,Len,1,fp)!=1) cout写入数据出错next; cout数据存入成

6、功!请按任意键继续!endl; getchar(); fclose(fp);/单次输入void sinput(struct student *p)cout请输入学号:p-number;cout请输入姓名: p-name;cout请输入性别: p-sex;cout请输入家庭住址: p-adds;cout请输入联系电话: p-phone;cout请输入qq: p-qq;cout请输入语文成绩：p-chinese;if(p-chinese100|p-chinese0)cout成绩输入不符合规定，请重新输入：p-chinese;cout请输入数学成绩：p-math;if(p-math100|p-mat

7、h0)cout成绩输入不符合规定，请重新输入：p-math;cout请输入英语成绩：p-english;if(p-english100|p-english0)cout成绩输入不符合规定，请重新输入：p-english;cout请输入同学互评分：p-txhp;if(p-txhp100|p-txhp0)cout成绩输入不符合规定，请重新输入：p-txhp;cout请输入品德成绩：p-pinde;if(p-pinde100|p-pinde0)cout成绩输入不符合规定，请重新输入：p-pinde;cout请输入任课教师评分：p-teacher;if(p-teacher100|p-teacher0)c

8、out成绩输入不符合规定，请重新输入：p-teacher;p-ave=(p-chinese+p-math+p-english)/3.0;p-zc=(p-ave*0.6+p-txhp*0.1+p-pinde*0.2+p-teacher*0.1);coutendl;coutendl;cout你刚输入的信息为：endl;couttt学号:numberendl;couttt姓名:nameendl;couttt性别:sexendl;couttt家庭住址:addsendl;couttt联系电话:phoneendl;coutttQQ号:qqendl;couttt语文成绩：chineseendl;couttt

9、数学成绩:mathendl;couttt英语成绩:englishendl;couttt品德成绩:pindeendl;couttt教师评分:teacherendl;coutendl; return;/学生成绩录入函数struct student *input() struct student *head=NULL,*p1,*p2;/输入p1,p2链表最后节点 char ch=y; len=1; p2=p1=(struct student *)malloc(sizeof(struct student); cout请输入第len个学生的信息:endl; sinput(p1); coutendl; c

10、out按n退出或按任意键继续ch; while(1) if(len=1)/作为头结点 head=p1; else p2-next=p1; p2=p1; if(ch=N|ch=n) break; p1=(struct student *)malloc(sizeof(struct student); system(cls); len+; cout请输入第len个学生的信息:endl; sinput(p1); coutendl; cout按n退出或按任意键继续ch; p2-next=NULL; paixu_num(head); cout输入学生信息完成!请按任意键返回主菜单!endl; getcha

11、r(); return head;/学号排序void paixu_num(struct student *head) struct student t,*r,*p,*q;/t交换p、q，r头结点 r=head; if(r=NULL) cout学生信息不存在,请先输入学生信息!next; while(q) if(strcmp(q-number,p-number)0) /qnumber); strcpy(t.name,q-name); strcpy(t.sex,q-sex); strcpy(t.adds,q-adds); strcpy(t.phone,q-phone); strcpy(t.qq,q

12、-qq); t.chinese=q-chinese; t.math=q-math; t.english=q-english; t.txhp=q-txhp; t.pinde=q-pinde; t.teacher=q-teacher; strcpy(q-number,p-number); strcpy(q-name,p-name); strcpy(q-sex,p-sex); strcpy(q-adds,p-adds); strcpy(q-phone,p-phone); strcpy(q-qq,p-qq); q-chinese=p-chinese; q-math=p-math; q-english=

13、p-english; q-txhp=p-txhp; q-pinde=p-pinde; q-teacher=p-teacher; strcpy(p-number,t.number); strcpy(p-name,t.name); strcpy(p-sex,t.sex); strcpy(p-adds,t.adds); strcpy(p-phone,t.phone); strcpy(p-qq,t.qq); p-chinese=t.chinese; p-math=t.math; p-english=t.english; p-txhp=t.txhp; p-pinde=t.pinde; p-teacher

14、=t.teacher; q=q-next; r=r-next; /插入函数struct student *insert() struct student *p,*p1,*head; head=Read(); p1=head; p=(struct student *)malloc(sizeof(struct student); char num14,ch; cout请输入你要插入的前一个学生的学号:num; while(p1) if(!strcmp(p1-number,num) sinput(p); p-next=p1-next; p1-next=p; len+; else p1=p1-next

15、; cout按n退出或按任意键继续ch; if(ch=N|ch=n) break; cout学生信息插入成功！请按任意键返回！endl; getchar(); return head;/修改学生信息struct student *alter() char temp13; struct student *p,*head; head=Read(); p=head; couttemp; while(p) if(!strcmp(p-number,temp) sinput(p); p=p-next; coutendl;cout学生信息修改成功！请按任意键返回！endl;coutendl;system(p

16、ause);return head;/删除学生信息struct student *del() char temp13; int m=0; struct student *p1,*p,*head;/p1删除 head=Read(); p1=p=head; cout请输入你要删除学生的学号：temp; while(p) if(strcmp(p1-number,temp)=0) if(p1=head)/删除的头结点 head=p1-next; else p-next=p1-next; len-; m=1; cout学生信息删除成功！请按任意键返回主菜单.next; if(!m) cout查找不到这个

17、信息!endl; return head;void find_num(struct student *head)/按学号查找 struct student *p=head; char temp9; int m = 0; cout请输入要查找的学生的学号temp;while(p!=NULL) if(strcmp(p-number,temp) = 0) cout该学生的具体信息为：endl;coutendl;coutendl;couttt学号:numberendl;couttt姓名:nameendl;couttt性别:sexendl;couttt家庭住址:addsendl;couttt联系电话:p

18、honeendl;coutttQQ号:qqendl;couttt语文成绩：chineseendl;couttt数学成绩mathendl;couttt英语成绩englishendl;couttt平均成绩aveendl;couttt品德成绩pindeendl;couttt老师评分teacherendl;couttt综合成绩zcendl;score_paixu(head);couttt考试名次ksmcendl;couttt综测名次zcmcendl;coutendl;coutnext;/继续向下寻找 if(!m) cout查找不到这个学号的信息!endl; cout按任意键返回主菜单endl; get

19、char(); return ;void find_name(struct student *head)/按姓名查找 struct student *p= head; char temp9; int m = 0; cout请输入要查找的学生的姓名temp;while(p) if(strcmp(p-name,temp) = 0) cout该学生的具体信息为：endl;coutendl; coutendl; cout学号:numberendl;couttt姓名:nameendl;couttt性别:sexendl;couttt家庭住址:addsendl;couttt联系电话:phoneendl;co

20、utttQQ号:qqendl;couttt语文成绩：chineseendl;couttt数学成绩mathendl;couttt英语成绩englishendl;couttt平均成绩aveendl;couttt品德成绩pindeendl;couttt老师评分teacherendl;couttt综合成绩zcendl;score_paixu(head);couttt考试名次ksmcendl;couttt综测名次zcmcendl;coutendl;coutnext; if(!m) cout查找不到这个学号的信息!endl; cout按任意键返回主菜单endl; getchar(); return ;vo

21、id output() struct student *p,*head; head=Read(); p=head; int i=1; while(p) coutendl;couttt学号:numberendl;couttt姓名:nameendl;couttt性别:sexendl;couttt家庭住址:addsendl;couttt联系电话:phoneendl;coutttQQ号:qqendl;couttt语文成绩：chineseendl;couttt数学成绩:mathendl;couttt英语成绩:englishendl;couttt品德成绩:pindeendl;couttt老师评分:teacherendl;couttt平均成绩:aveendl;couttt综合成绩:zcendl;score_paixu(head);couttt考试名次ksmcendl;couttt综合测评名次zcmcnext;i+; coutendl; coutendl; cout请按任意键返回主菜单endl; getchar(); return ;void max_student(struct student *head)