#include <stdio.h>#include <stdlib.h>#include <windows.h>#include <string.h>#define N 20struct xk{ int num; char name[20]; char xz; int zks; int ks; int syks; int xf; int kk;}kc[N];void lr(){ FILE *fp; int i,n; fp=fopen("d://kcxx.txt","ab+"); if(fp==NULL){ printf("Can not open file\n"); exit(1); } printf("輸入幾門課程信息\n"); scanf("%d",&n); for(i=0;i<n;i++) { printf("請輸入課程編號\n"); scanf("%d",&kc[i].num); printf("請輸入課程名稱\n"); gets(kc[i].name); printf("請輸入課程性質(zhì)\n"); scanf("%c",&kc[i].xz); printf("請輸入課程總課時\n"); scanf("%d",&kc[i].zks); printf("請輸入課程授課課時\n"); scanf("%d",&kc[i].ks); printf("請輸入課程實驗課時\n"); scanf("%d",&kc[i].syks); printf("請輸入課程學(xué)分\n"); scanf("%d",&kc[i].xf); printf("請輸入課程開課學(xué)期\n"); scanf("%d",&kc[i].kk); fwrite(&kc[i],sizeof(struct xk),8,fp); } fclose(fp);}void ll(){ FILE *fp; int i; fp=fopen("d://kcxx.txt","ab+"); if(fp==NULL){ printf("Can not open file\n"); exit(1); } for(i=0;i<N;i++){ fread(&kc[i],sizeof(struct xk),8,fp); printf("%d\t%s\t%c\t%d\t%d\t%d\t%d\t%d\t",&kc[i].num,&kc[i].name,&kc[i].xz,&kc[i].zks,&kc[i].ks,&kc[i].syks,&kc[i].xf,&kc[i].kk); } fclose(fp);}void xfcx(){ FILE *fp; struct xk kc1[N]; int i,n; fp=fopen("d://kcxx.txt","rb"); if(fp==NULL){ printf("Can not open file\n"); exit(1); } printf("輸入學(xué)分\n"); scanf("%d",&i); for(n=0;n<N;n++){ fread(&kc1[n],sizeof(struct xk),1,fp); if(i==kc1[n].xf) { printf("%d\t%s\t%c\t%d\t%d\t%d\t%d\t%d\t",&kc[i].num,&kc[i].name,&kc[i].xz,&kc[i].zks,&kc[i].ks,&kc[i].syks,&kc[i].xf,&kc[i].kk); }}void xfcx(){ FILE *fp; struct xk kc1[N]; int i,n; fp=fopen("d://kcxx.txt","rb"); if(fp==NULL){ printf("Can not open file\n"); exit(1); } printf("輸入學(xué)分\n"); scanf("%d",&i); for(n=0;n<N;n++){ fread(&kc1[n],sizeof(struct xk),1,fp); if(i==kc1[n].xf) { printf("%d\t%s\t%c\t%d\t%d\t%d\t%d\t%d\t",&kc[i].num,&kc[i].name,&kc[i].xz,&kc[i].zks,&kc[i].ks,&kc[i].syks,&kc[i].xf,&kc[i].kk); }}void cx(){ FILE *fp; int i; fp=fopen("d://kcxx.txt","ab+"); if(fp==NULL){ printf("Can not open file\n"); exit(1); } printf("1、學(xué)分查詢，2、課程性質(zhì)查詢"); scanf("%d",&i); switch(i) { case 1:xfcx(); break; case 2:xzcx(); break; default:printf("輸入有誤，重新輸入。\n"); sleep(1000); }}