xueji.rar_visual c

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <conio.h> #include <ctype.h> #define N 100 struct scorce { char admi[6]; char password[6]; char num[10]; char name[30]; int scorce[6]; char key[5]; }data,info[N],a; /*data放数据,info放排序后的数据*/ int i,j,k,m,l=0; char s[20]; /*存储参数*/ FILE *fp,*fp1,*fp2; void input() { char c; if((fp=fopen("s_scorce.txt","ab "))==NULL) /*以读写打开文件,并判断是否打开*/ { printf("cannot open this file.\n"); getch(); } for(i=0;i<=100;i ) { char c; printf("Please input student's password:"); /*资料录入*/ gets(data.password); printf("Please input number:"); gets(data.num); printf("Please input name:"); gets(data.name); printf("Please input maths scorce:"); gets(s); data.scorce[1]=atoi(s); printf("Please input english scorce:"); gets(s); data.scorce[2]=atoi(s); printf("Please input physics scorce:"); gets(s); data.scorce[3]=atoi(s); printf("Please input chemistry scorce:"); gets(s); data.scorce[4]=atoi(s); data.scorce[5]=data.scorce[1] data.scorce[2] data.scorce[3] data.scorce[4]; /*总分*/ data.scorce[6]=((data.scorce[1] data.scorce[2] data.scorce[3] data.scorce[4])/4); /*平均分*/ fwrite(&data,sizeof(data),1,fp); /*写入文件*/ printf("another? (y/n)\n"); c=getch(); if(c=='n'||c=='N') break; }fclose(fp); } void sort_maths() /*数学排序*/ { float n; if((fp=fopen("s_scorce.txt","r"))==NULL) /*只读打开并判断是否打开*/ { printf("Cannot reading this file.\n"); exit(0); } printf("\nfile:"); for(i=0;fread(&info,sizeof(struct scorce),1,fp)!=0;i ) {printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[1]); }fclose(fp); n=i; for(i=0;i<n;i ) /*冒泡排序*/ for(j=i 1;j<n;j ) if(info.scorce[1]<info[j].scorce[1]) {a=info; info=info[j]; info[j]=a; } printf("\nnow:"); fp=fopen("stu_sort.txt","w"); for(i=0;i<n;i ) {fwrite(&info,sizeof(struct scorce),1,fp); printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[1]); } getch(); fclose(fp); } void sort_english() { float n; if((fp=fopen("s_scorce.txt","r"))==NULL) { printf("Cannot reading this file.\n"); exit(0); } printf("\nfile:"); for(i=0;fread(&info,sizeof(struct scorce),1,fp)!=0;i ) {printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[2]); }fclose(fp); n=i; for(i=0;i<n;i ) for(j=i 1;j<n;j ) if(info.scorce[2]<info[j].scorce[2]) {a=info; info=info[j]; info[j]=a; } printf("\nnow:"); fp=fopen("stu_sort.txt","w"); for(i=0;i<n;i ) {fwrite(&info,sizeof(struct scorce),1,fp); printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[2]); } getch(); fclose(fp); } void sort_physics() { float n; if((fp=fopen("s_scorce.txt","r"))==NULL) { printf("Cannot reading this file.\n"); exit(0); } printf("\nfile:"); for(i=0;fread(&info,sizeof(struct scorce),1,fp)!=0;i ) {printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[3]); }fclose(fp); n=i; for(i=0;i<n;i ) for(j=i 1;j<n;j ) if(info.scorce[3]<info[j].scorce[3]) {a=info; info=info[j]; info[j]=a; } printf("\nnow:"); fp=fopen("stu_sort.txt","w"); for(i=0;i<n;i ) {fwrite(&info,sizeof(struct scorce),1,fp); printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[3]); } getch(); fclose(fp); } void sort_chemistry() { float n; if((fp=fopen("s_scorce.txt","r"))==NULL) { printf("Cannot reading this file.\n"); exit(0); } printf("\nfile:"); for(i=0;fread(&info,sizeof(struct scorce),1,fp)!=0;i ) {printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[4]); }fclose(fp); n=i; for(i=0;i<n;i ) for(j=i 1;j<n;j ) if(info.scorce[4]<info[j].scorce[4]) {a=info; info=info[j]; info[j]=a; } printf("\nnow:"); fp=fopen("stu_sort.txt","w"); for(i=0;i<n;i ) {fwrite(&info,sizeof(struct scorce),1,fp); printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[4]); } getch(); fclose(fp); } void sort_total() { float n; if((fp=fopen("s_scorce.txt","r"))==NULL) { printf("Cannot reading this file.\n"); exit(0); } printf("\nfile:"); for(i=0;fread(&info,sizeof(struct scorce),1,fp)!=0;i ) {printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[5]); }fclose(fp); n=i; for(i=0;i<n;i ) for(j=i 1;j<n;j ) if(info.scorce[5]<info[j].scorce[5]) {a=info; info=info[j]; info[j]=a; } printf("\nnow:"); fp=fopen("stu_sort.txt","w"); for(i=0;i<n;i ) {fwrite(&info,sizeof(struct scorce),1,fp); printf("\n%8s%8s",info.num,info.name); printf("%d",info.scorce[5]); } getch(); fclose(fp); } void display() /*显示数据*/ { float s;int n; if((fp=fopen("s_scorce.txt","rb "))==NULL) /*只读打开*/ { printf("Cannot reading this file.\n"); exit(0); } for(i=0;i<=100;i ) { if((fread(&info,sizeof(info),1,fp))!=1) break; } printf("\nclass number name chinese maths english physics chemistry total average\n"); for(j=0,k=1;j<i;j ,k ) { printf(" %6s %5s = = = = = \n",info[j].num,info[j].name,info[j].scorce[1],info[j].scorce[2],info[j].scorce[3],info[j].scorce[4],info[j].scorce[5]); } fclose(fp); getch(); } void showone() /*显示个人数据*/ { if((fp=fopen("s_scorce.txt","rb"))==NULL) { printf("\nCannot open this file.\n"); exit(0); } printf("\nPlease input number:"); scanf("%d",&i); printf("Please input password:"); scanf("%d",&k); while(fread(&data,sizeof(data),1,fp)==1) { j=atoi(data.num); l=atoi(data.password); if((i==j)&&(k==l)) { printf("num:%7s name:%7s\n maths: =\n english: =\n physics: =\n chemistry: =\n total: =\n average: =\n ",data.num,data.name,data.scorce[1],data.scorce[2],data.scorce[3],data.scorce[4],data.scorce[5],data.scorce[6]); }fclose(fp); getch(); } } void change() /*修改数据*/ { if((fp=fopen("s_scorce.txt","rb "))==NULL||(fp1=fopen("temp.txt","wb "))==NULL) { printf("Cannot open this file.\n"); exit(0); } printf("\nPlease input the change number:"); scanf("%d",&i); getchar(); while((fread(&data,sizeof(data),1,fp))==1) { j=atoi(data.num); if(j==i) {