1、器 Sr#include<stdio.h>#include<string.h>#include<stdlib.h>struct studlong num;char name20;float sx;float dx;float ts;float dl;float cx;float zf;float pj;struct studcodestruct stud student;struct studcode *next;void menu();void input(struct studcode *);void output(struct studcode *);

2、void binsearch(struct studcode *);void insert(struct studcode *);void delet(struct studcode *);void good(struct studcode *);void fail(struct studcode *);void sort(struct studcode *);void back();void main()char choose;int flag=1;struct studcode *head;head=NULL;printf("請先錄入學生成績信息n");printf(&

3、quot;輸入學生學號姓名高數、英語讀寫、英語聽說、計算機導論和程序設計的成績 n");input(&head);while (flag)(system("cls");menu();printf("請選擇:");getchar();choose=getchar();switch(choose) (case '1':output(head);back();break;case '2':binsearch(head);back();break;case '3':insert(&head

4、);output(head);back();break;case '4':delet(&head);output(head);back();break;case '5':good(head);back();break;case '6':fail(head);back();break;case '7':sort(head);output(head);back();break;case '0':flag=0;printf("n* The End! *n");printf("n #感

5、謝使用,歡送再次登錄,拜拜！ #'n");尚品break;default: printf("n Wrong Selection !(選擇錯誤,請重選 )n"); back(); void menu()printf(" n學生成績統計與分析系統n");printf(" n菜 單 nn");printf(" n1.顯布所后學生的信息n");printf(" n2.查找某學號的學生信息n");printf(" n3.插入某學生的信息n");printf("

6、; n4.刪除某學號學生的信息n");printf(" n5.統計各門課程成績在 90分以上學生所占百分比printf(" n6.統計各門課程成績在 60分以下學生所占百分比printf(" n7.按總分降序排序,依上下排知名次n");printf(" n0.退出 nn");n");n");void back()int x;printf("n");doprintf("按1返回菜單界面:");scanf("%d",&x);while(x!=

7、1);void input(struct studcode *headp)struct studcode *p;while(1)p=(struct studcode *)malloc(sizeof(struct studcode);scanf("%ld",&p->student.num);if(p->student.num=0) break;"才j (PH d-F- - = - - - - - - * - -scanf("%s%f%f%f%f%f",&p->,&p->stu

8、dent.sx,&p->student.dx,&p->student.ts, &p->student.dl,&p->student.cx);p->student.zf=p->student.sx+p->student.dx+p->student.ts+p->student.dl+p->student.cx;p->student.pj=p->student.zf/5;p->next=*headp;*headp=p;void output(struct studcode *head)str

9、uct studcode *p;p=head;printf("學號t姓名t高數t讀寫t聽說t導論t程序t總分t平均分n");while(p!=NULL)printf("%-ldt%-4st%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2fn",p->student.n um,p->,p->student.sx,p->student.dx,p->student.ts,p->student.dl,p->student.cx,p->s tude

10、nt.zf,p->student.pj);p=p->next;printf("n");void binsearch(struct studcode *head)struct studcode *p;int k=1;long x;p=head;printf("請輸入需要查找的學生的學號：");scanf("%ld",&x);printf("n");while(p!=NULL)if(p->student.num=x)printf("該學生信息如下：n");printf(&q

11、uot;學號t姓名t高數t讀寫t聽說t導論t程序t總分t平均分n");printf("%-ldt%-4st%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2fn",p->student.num,p"一 才j (PH d-F- - = = - - - - - * " ->,p->student.sx,p->student.dx,p->student.ts,p->student.dl,p->student.cx,p->stude nt

12、.zf,p->student.pj);k=0;break;p=p->next; if(k) printf("沒有此學生的信息n"); void insert(struct studcode *headp)struct studcode *p;p=(struct studcode *)malloc(sizeof (struct studcode);printf("請輸入你想插入的學生的信息n");scanf("%ld%s%f%f%f%f%f",&p->student.num,&p->student

13、.name,&p->student.sx,&p->stude nt.dx,&p->student.ts,&p->student.dl,&p->student.cx);p->student.zf=p->student.sx+p->student.dx+p->student.ts+p->student.dl+p->student.cx;p->student.pj=p->student.zf/5;p->next=*headp;*headp=p;printf("* 插入

14、成功 *n"); void delet(struct studcode *headp)struct studcode *p,*last;long x;p=*headp;printf("請輸入你要刪除的學生的學號：");scanf("%ld",&x);while(p->student.num!=x&&p->next!=NULL) last=p;p=p->next;if(p->student.num=x)if(p=*headp)器 Sr*headp=p->next;elselast->ne

15、xt=p->next;free(p);printf("n* 刪除成功 *n");)else printf("n*刪除失敗,無該學生信息 *n"); ) void good(struct studcode *head)(struct studcode *p;int x1,x2,x3,x4,x5,k;float y1,y2,y3,y4,y5;x1=x2=x3=x4=x5=k=0;p=head;while(p!=NULL)k+;if(p->student.sx>=90) x1+;if(p->student.dx>=90) x2+;

16、if(p->student.ts>=90) x3+;if(p->student.dl>=90) x4+;if(p->student.cx>=90) x5+;p=p->next;)y1=(float)x1/k;y2=(float)x2/k;y3=(float)x3/k;y4=(float)x4/k;y5=(float)x5/k;printf("高數t讀寫t聽說t導論t程序n");printf("%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2fn",y1,y2,y3,y4,y5);) void f

17、ail(struct studcode *head) struct studcode *p;器 Srint x1,x2,x3,x4,x5,k;float y1,y2,y3,y4,y5;x1=x2=x3=x4=x5=k=0;p=head;while(p!=NULL)k+;if(p->student.sx<60) x1+;if(p->student.dx<60) x2+;if(p->student.ts<60) x3+;if(p->student.dl<60) x4+;if(p->student.cx<60) x5+;p=p->next;y1=(float)x1/k;y2=(float)x2/k;y3=(float)x3/k;y4=(float)x4/k;y5=(float)x5/k;printf("高數t讀寫t聽說t導論t程序n");printf("%-0.2ft%-0.2ft%-0.2ft%-0.2ft%-0.2fn",y1,y2,y3,y4,y5); void sort(struct studcode *head)struct stud temp;int i,j,n;struct studcode *p,*