c语言

#include "malloc.h"#include "stdio.h"#include "stdlib.h"#include "string.h"struct scorenode{int number;/*学号*/char name[10];/*姓名*/char kcname[10];/*课程名称*/char bianhao[5];/*课程编号*/int credit;/*学分*/float phyps;/*大学物理平时成绩*/float physy;/*大学物理实验成绩*/float phyjm;/*大学物理卷面成绩*/float vfps;/*VF平时成绩*/float vfsy;/*VF实验成绩*/float vfjm;/*VF卷面成绩*/float mathps;/*高等数学平时成绩*/float mathsy;/*高等数学实验成绩*/float mathjm;/*高等数学卷面成绩*/}score[7];struct scorenode change;struct scorenode paixu[7];struct imformatiom{char sex[10];int fanghao;char phone[20];}imf[7];float shifen[7];/*实得学分数组*/float zonghe[7];/*综合成绩数组*/char a[10];char filepn[10];/*文件路径以及文件名*/ float t;int n;/*录入的学生数*/int k;int i;int j;int x;int y;int u;int xuehao1;int xuehao2;/*全局变量本程序中的函数均可以使用它*//*==================================================*//*==================================================*//*==================================================*//*==================================================*/int creat()/*录入学生基本信息*/{system("cls");printf("请输入学生资料，输0退出!\n");printf("请输入要输入的学生人数(应为非负数):");scanf("%d",&n);if(n>0){for(i=0;i<n;i++){printf("\n\n");printf("请按顺序输入学生学号(学号应大于0)：");/*输入学号，学号应大于0*/scanf("%d",&score[i].number);if(score[i].number<0) /*输入学号为字符或小于0时，程序报错，提示重新输入学号*/{printf("输入错误，请重新输入学生学号:");scanf("%d",&score[i].number);}printf("请输入学生姓名：");scanf("%s",&score[i].name);/*输入学生姓名*/printf("请输入大学物理课程编号：");scanf("%s",&score[i].bianhao);printf("请输入该编号的课程名称：");scanf("%s",&score[i].kcname);printf("请输入该科的学分：");scanf("%d",&score[i].credit);printf("请输入大学物理平时成绩(0~100)：");scanf("%f",&score[i].phyps);/*输入大学物理平时成绩，成绩应在0-100*/while(score[i].phyps<0||score[i].phyps>100){printf("输入错误，请重新输入大学物理平时成绩");scanf("%f",&score[i].phyps);}/*输入错误，重新输入大学物理平时成绩直到正确为止*/printf("请输入大学物理实验成绩(0~100,无实验则为-1)：");scanf("%f",&score[i].physy);/*输入大学物理实验成绩，成绩应在0-100,无实验则为-1*/if(score[i].physy==-1){printf("该科无实验成绩\n");}elsewhile(score[i].physy<0||score[i].physy>100){printf("输入错误，请重新输入大学物理实验成绩");scanf("%f",&score[i].physy);}/*输入错误，重新输入大学物理实验成绩直到正确为止*/printf("请输入大学物理卷面成绩(0~100)：");scanf("%f",&score[i].phyjm);/*输入大学物理卷面成绩，成绩应在0-100*/ while(score[i].phyjm<0||score[i].phyjm>100){printf("输入错误，请重新输入大学物理卷面成绩");scanf("%f",&score[i].phyjm);}/*输入错误，重新输入大学物理卷面成绩直到正确为止*/printf("请输入VF课程编号：");scanf("%s",&score[i].bianhao);printf("请输入该编号的课程名称：");scanf("%s",&score[i].kcname);printf("请输入该科的学分：");scanf("%d",&score[i].credit);printf("请输入VF平时成绩(0~100)：");scanf("%f",&score[i].vfps);/*输入VF平时成绩，成绩应在0-100*/while(score[i].vfps<0||score[i].vfps>100){printf("输入错误，请重新输入VF平时成绩");scanf("%f",&score[i].vfps);}/*输入错误，重新输入VF平时成绩直到正确为止*/printf("请输入VF实验成绩(0~100,无实验则为-1)：");scanf("%f",&score[i].vfsy);/*输入VF实验成绩，成绩应在0-100,无实验则为-1*/ if(score[i].vfsy==-1){printf("该科无实验成绩\n");}elsewhile(score[i].vfsy<0||score[i].vfsy>100){printf("输入错误，请重新输入VF实验成绩");scanf("%f",&score[i].vfsy);}/*输入错误，重新输入VF实验成绩直到正确为止*/printf("请输入VF卷面成绩(0~100)：");scanf("%f",&score[i].vfjm);/*输入VF卷面成绩，成绩应在0-100*/while(score[i].vfjm<0||score[i].vfjm>100){printf("输入错误，请重新输入VF卷面成绩");scanf("%f",&score[i].vfjm);}/*输入错误，重新输入VF卷面成绩直到正确为止*/printf("请输入高等数学课程编号：");scanf("%s",&score[i].bianhao);printf("请输入该编号的课程名称：");scanf("%s",&score[i].kcname);printf("请输入该科的学分：");scanf("%d",&score[i].credit);printf("请输入高等数学平时成绩(0~100)：");scanf("%f",&score[i].mathps);/*输入高等数学平时成绩，成绩应在0-100*/while(score[i].mathps<0||score[i].mathps>100){printf("输入错误，请重新输入高等数学平时成绩");scanf("%f",&score[i].mathps);}/*输入错误，重新输入高等数学平时成绩直到正确为止*/printf("请输入高等数学实验成绩(0~100,无实验则为-1)：");scanf("%f",&score[i].mathsy);/*输入高等数学实验成绩，成绩应在0-100,无实验则为-1*/if(score[i].mathsy==-1){printf("该科无实验成绩\n");}elsewhile(score[i].mathsy<0||score[i].mathsy>100){printf("输入错误，请重新输入高等数学实验成绩");scanf("%f",&score[i].mathsy);}/*输入错误，重新输入高等数学实验成绩直到正确为止*/printf("请输入高等数学卷面成绩(0~100)：");scanf("%f",&score[i].mathjm);/*输入高等数学卷面成绩，成绩应在0-100*/while(score[i].mathjm<0||score[i].mathjm>100){printf("输入错误，请重新输入高等数学卷面成绩");scanf("%f",&score[i].mathjm);}/*输入错误，重新输入高等数学卷面成绩直到正确为止*/printf("输入学生人数为%d个\n",n);}if(n==0){printf("输入学生人数为0个\n");return EOF;}system("pause");return 0;}/*==================================================================== =============================*//*==================================================================== =============================*/int write()/*从文件读入学生资料函数*/{int m=0;FILE *fp;system("cls");printf("请输入文件路径及文件名:");scanf("%s",filepn);/*输入文件路径及名称*/if((fp=fopen(filepn,"r+"))==NULL){printf("不能打开文件!\n");return 0;}printf("┌──┬────┬──┬────┬─────────┐\n");printf("│学号│姓名│性别│宿舍号码│电话号码│\n");printf("├──┼────┼──┼────┼─────────┤\n");for(i=0;!feof(fp)&&!ferror(fp);i++){fscanf(fp,"%d%s%s%d%s\n",&score[i].number,&score[i].name,&imf[i].sex,&imf[i].fanghao ,&imf[i].phone);printf("│%d │%s │%s │%d │%s │\n",score[i].number,score[i].name,&imf[i].sex,imf[i].fanghao,imf[i].phone);printf("├──┼────┼──┼────┼─────────┤\n");}/*文件读入与显示*/printf("└──┴────┴──┴────┴─────────┘\n");/*表格下线*/ system("pause");fclose(fp);/*结束读入，关闭文件*/}/*==================================================================== =============================*//*==================================================================== =============================*//*==================================================================== ====================*/void save()/*保存B.txt函数*/{FILE *fp;printf("资料保存到B.txt文件中.\n");if((fp = fopen("B.txt","w"))==NULL){printf("保存出错!\n");exit(0);}for(i=0;i<n;i++){fprintf(fp,"学号：%d\t姓名：%s\n",score[i].number,score[i].name);fprintf(fp,"课程编号：%s\t课程名称：%s\t平时成绩：%.0f\t实验成绩：%.0f\t卷面成绩：%.0f\n",score[i].bianhao,score[i].kcname,score[i].phyps,score[i].physy,score[i].phyjm);fprintf(fp,"课程编号：%s\t课程名称：%s\t平时成绩：%.0f\t实验成绩：%.0f\t卷面成绩：%.0f\n",score[i].bianhao,score[i].kcname,score[i].vfps,score[i].vfsy,score[i].vfjm);fprintf(fp,"课程编号：%s\t课程名称：%s\t平时成绩：%.0f\t实验成绩：%.0f\t卷面成绩：%.0f\n",score[i].bianhao,score[i].kcname,score[i].mathps,score[i].mathsy,score[i].mathjm);}printf("保存完毕");fclose(fp);system("pause");system("cls");}/*==================================================================== =============================*//*==================================================================== =============================*//*==================================================================== ====================*/void search2()/*学生个人信息查询*/{int b;printf("按学号查询请按1\t按姓名查询请按2\n");scanf("%d",&b);switch(b){case 1:{printf("请输入一个学号：");scanf("%d",&xuehao2);for(i=0;i<n;i++){if((xuehao2==score[i].number)&&(xuehao2>0)){u=1;printf("┌──┬────┬──┬────┬─────────┐\n");printf("│学号│姓名│性别│宿舍号码│电话号码│\n");printf("├──┼────┼──┼────┼─────────┤\n");printf("│%d │%s │%s │%d │%s │\n",score[i].number,score[i].name,&imf[i].sex,imf[i].fanghao,imf[i].phone);printf("└──┴────┴──┴────┴─────────┘\n");/*表格下线*/}elseu=0;}if(u==0)printf("输入的学号不存在，重新查询");system("pause");};break;case 2:{printf("请输入学生姓名：");scanf("%s",a);for(i=0;i<n;i++){if(strcmp(a,score[i].name)==0)/*strcmp=>字符串比较函数*/{u=1;printf("┌──┬────┬──┬────┬─────────┐\n");printf("│学号│姓名│性别│宿舍号码│电话号码│\n");printf("├──┼────┼──┼────┼─────────┤\n");printf("│%d │%s │%s │%d │%s │\n",score[i].number,score[i].name,&imf[i].sex,imf[i].fanghao,imf[i].phone);printf("└──┴────┴──┴────┴─────────┘\n");/*表格下线*/}elseu=0;}system("pause");};break;}}/*==================================================================== ====================*//*==================================================================== ====================*/void search3()/*查询同宿舍学生的信息*/{int sushe;printf("请输入宿舍号码：");scanf("%d",&sushe);for(i=0;i<n;i++){if((sushe==imf[i].fanghao)&&(sushe>0)){u=1;printf("┌──┬────┬──┬────┬─────────┐\n");printf("│学号│姓名│性别│宿舍号码│电话号码│\n");printf("├──┼────┼──┼────┼─────────┤\n");printf("│%d │%s │%s │%d │%s │\n",score[i].number,score[i].name,&imf[i].sex,imf[i].fanghao,imf[i].phone);printf("├──┼────┼──┼────┼─────────┤\n");}elseu=0;}if(u==1){printf("└──┴────┴──┴────┴─────────┘\n");}system("pause");}/*==================================================================== ====================*//*==================================================================== ====================*/void del()/*删除函数*/{int xuehaodel;printf("请输入要在A.txt中删除的学生的学号：");scanf("%d",&xuehaodel);for(i=0;i<n;i++){if(xuehaodel==score[i].number){u=1;for(i=xuehaodel-1;i<n;i++){score[i]=score[i+1];imf[i]=imf[i+1];}n--;}}}/*==================================================================== ====================*//*==================================================================== ====================*/int menu(k)/*菜单选择界面函数*/{system("cls");printf("\t\t\t\t学生管理系统\n");printf("\t\t\t作者:戴思途班级:08电气2班学号:3108001054\n\n");printf("\t\t\t");for(i=0;i<15;i++)printf("☆");printf("\n\n");printf("\t\t\t☆1先从文件A.txt中调入资料\n\n\t\t\t☆2录入学生的成绩\n\n\t\t\t☆3保存学生的成绩\n\n");printf("\t\t\t☆4对成绩和实得学分排序\n\n\t\t\t☆5查询学生的个人成绩\n\n\t\t\t☆6查询学生个人资料\n\n");printf("\t\t\t☆7查询同宿舍学生资料\n\n\t\t\t☆8删除学生的资料\n\n\t\t\t☆\n");/*菜单选择界面*/printf("\t\t\t");for(i=0;i<15;i++)printf("☆");printf("\n\n");printf("欢迎进入学生管理系统，请选择您所要的操作(选择(0)退出):");scanf("%d",&k);/*选择操作*/return (k);}/*==================================================================== ================================================*//*==================================================================== ================================================*/float xuefen(float a,float b,float c,float d)/*平时成绩，实验成绩，卷面成绩，学分。