c语言大作业(全).pdf

#include stdafx.h #include stdio.h #include stdlib.h #include string.h #include malloc.h #define LEN sizeof(struct student) #define NULL 0 int n,m; int k 1; struct student {char num[20]; char name[20]; int age; char profession[50]; int maths; int english; int C_program; float ave; struct student * next; }; float ave(struct student * p1) { float ave; ave (float)(p1-maths+p1-english+p1-C_program)/3; return ave; } void save(struct student *head) { struct student *p1 head; FILE *outFile; outFile fopen(stu.bin, wb); if (outFile NULL) { printf(\nFile error.); } else { while(p1 ! NULL) { fwrite(p1, sizeof(struct student), 1, outFile); p1 p1-next; } fclose(outFile); } } //将数据存入文档中 void check(struct student * head,struct student * p1) {struct student *h head; for(m 0;mn;m++,h h-next ) { if(strcmp(h-num,p1-num) 0) {printf(输入号码重复\n); printf(请重新输入学号：); scanf(%s,p1-num); getchar(); check(head,p1); } } } //检验学号是否重复 struct student * creat() {struct student * head; struct student *p1,*p2; n 0; p1 p2 (struct student *)malloc(LEN); printf(学号:\n); scanf(%s,p1-num); getchar(); printf(姓名:\n); gets(p1-name); printf(年龄:\n); scanf(%d,p1-age); getchar(); printf(专业:\n); gets(p1-profession); printf(数学成绩:\n); scanf(%d,p1-maths); printf(英语成绩:\n); scanf(%d,p1-english); printf(C语言成绩:\n); scanf(%d,p1-C_program); head NULL; while(strcmp(p1-num,0)! 0) {n n+1; if(n 1)head p1; else p2-next p1; p2 p1; p1 (struct student *)malloc(LEN); printf(学号:\n); scanf(%s,p1-num); getchar(); check(head,p1);//检查输入的学号是不是重复且是不是重复输错 printf(姓名:\n); gets(p1-name); printf(年龄:\n); scanf(%d,p1-age); getchar();