课程信息管理系统C语言程序

#include<stdio.h>#include<stdlib.h>#include<string.h>typedef struct{char num[15];char name[20];char credit[10];char clas[20];char teacher[20];}student;student pe[80];int menu_select(){char c;do{system("cls");printf("+---------------------------+\n");printf("| |\n");printf("| 欢迎使用课程信息管理系统|\n");printf("| |\n");printf("+---------------------------+\n");printf("\t\t *****课程信息管理系统***** \n");printf("\t\t ┌───────┐\n");printf("\t\t │1. 增加记录│\n");printf("\t\t │2. 显示记录│\n");printf("\t\t │3. 查询记录│\n");printf("\t\t │4. 修改记录│\n");printf("\t\t │5. 删除记录│\n");printf("\t\t │6. 存储记录│\n");printf("\t\t │0. 退出程序│\n");printf("\t\t └───────┘\n");printf("\t\t请您选择(0-6):");c=getchar();}while(c<'0'||c>'6');return(c-'0');}int Input(student per[],int n){int i=0;char sign,x[10];while(sign!='n'&&sign!='N'){printf("\t课程编号:");scanf("\t%s",per[n+i].num);printf("\t课程名称:");scanf("\t%s",per[n+i].name);printf("\t学分:");scanf("\t%s",per[n+i].credit);printf("\t选修课号:");scanf("\t%s",per[n+i].clas);printf("\t任课教师:");scanf("\t%s",per[n+i].teacher);gets(x);printf("\n\t是否继续添加?(Y/N)");scanf("\t%c",&sign);i++;}return(n+i);}void Display(student per[],int n){int i;printf("-------------------------------------------------------------------------------\n");/*格式*/printf("课程编号课程名称学分选修课号任课教师\n");printf("-------------------------------------------------------------------------------\n");for(i=1;i<n+1;i++){printf("%-12s%-12s%-15s%-18s%s\n",per[i-1].num,per[i-1].name,per[i-1].credit,per[i-1].cla s,per[i-1].teacher);if(i>1&&i%10==0){printf("\t-----------------------------------------\n");printf("\t");system("pause");printf("\t-----------------------------------------\n");}}printf("------------------------------------------------------------------------------\n");system("pause");}int Delete_a_record(student per[],int n) //删除学生记录函数{char s[20];int i=0,j;printf("\t请输入想删除记录中的课程编号:");scanf("%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有此科目!\n");return(n);}for(j=i;j<n-1;j++){strcpy(per[j].num,per[j+1].num);strcpy(per[j].name,per[j+1].name);strcpy(per[j].credit,per[j+1].credit);strcpy(per[j]. clas,per[j+1]. clas);strcpy(per[j]. teacher,per[j+1]. teacher);}printf("\t\t\t已经成功删除!\n");return(n-1);}void Query_a_record(student per[],int n) //查询学生记录{int m;printf("\t\n请选择查询方式:\n");printf("\t┌─────----─┐\n");printf("\t│1------课程编号│\n");printf("\t│2------课程名称│\n");printf("\t│3------返回│\n");printf("\t└───--─--──┘\n");printf("请选择:");scanf("%d",&m);while(m!=1&&m!=2&&m!=3){printf("输入错误，请重新选择:");scanf("%d",&m);}if(m==1) // 按课程编号查询{char s[20];int i=0;printf("\t请输入想查询的课程编号:");scanf("\t%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有这个科目!\n");return;}printf("\t课程名称: %s\n",per[i].name);printf("\t学分: %s\n",per[i]. credit);printf("\t选修课号: %s\n",per[i].clas);printf("\t任课教师: %s\n",per[i].teacher);} ;if(m==2) //按课程名称查询{char s[20];int i=0;printf("\t请输入想查询的课程名称:");scanf("\t%s",s);while(strcmp(per[i].name,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有该科目!\n");return;}printf("\t课程编号%s\n",per[i].num);printf("\t学分: %s\n",per[i].credit);printf("\t选修课号: %s\n",per[i].clas);printf("\t任课教师: %s\n",per[i].teacher);} ;}void Change(student per[],int n) //修改课程记录{char s[20];int i=0;printf("\t请输入想修改的课程信息管理系统中的课程编号:");scanf("%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有该科目!\n");return;}printf("\t课程编号:");scanf("\t%s",per[i].num);printf("\t课程名称:");scanf("\t%s",per[i].name);printf("\t学分:");scanf("\t%s",per[i].credit);printf("\t选修课号:");scanf("\t%s",per[i].clas);printf("\t任课教师:");scanf("\t%s",per[i].teacher);printf("\t修改成功！");}void WritetoText(student per[],int n){int i=0;FILE *fp; //定义文件指针char filenum[20]; //定义文件名printf("\t保存到文件\n"); //输入文件名printf("\t请输入所保存的文件名:");scanf("\t%s",filenum);if((fp=fopen(filenum,"w"))==NULL){printf("\t无法打开文件\n");system("pause");return;}fprintf(fp,"****************************************** 课程信息管理系统**********************************\n");fprintf(fp," 课程编号课程名称学分选修课号任课教师\n");fprintf(fp,"------------------------------------------------------------------------------------------\n");while(i<=n){fprintf(fp,"%-10s%-10s%-15s%-18s%%s\n",per[i-1].num,per[i-1].name,per[i-1].credit,per[i-1].clas,per[i-1].teacher);i++;}fprintf(fp,"------------------------------------------------------------------------------------------\n");fprintf(fp,"***************************************共有%d条记录****************************************\n",n);fclose(fp); /*关闭文件*/printf("成功保存\n");}int main(){int n=0;for(;;){switch(menu_select()){case 1:printf("\n\t请增加记录到系统\n");n=Input(pe,n);break;case 2:printf("\n\t\t\t 课程信息管理系统记录表\n");Display(pe,n);break;case 5:printf("\n\t从系统中删除记录\n");n=Delete_a_record(pe,n);printf("\t");system("pause");break;case 3:printf("\n\t在系统中查找记录\n");Query_a_record(pe,n);printf("\t");system("pause");break;case 4:printf("\n\t修改系统中的记录\n");Change(pe,n);printf("\t");system("pause");break;case 6:printf("\n\t保存功能\n");WritetoText(pe,n);printf("\t");system("pause");break;case 0:printf("\n\t\t谢谢您的使用，欢迎下次再来!!再见!!\n");printf("\n\t\t");system("pause");exit(0);}}return 0;}#include<stdio.h>#include<string.h>struct link{char cno[10],cname[10],cforecourse[10],cunitno[10],cunitname[10];int ia;struct link *next;};struct link *head;int menu(){int ii;printf("please choose a number:\n");printf("******************************************:\n");printf("1: create :\n");printf("2: search :\n");printf("3: delete :\n");printf("4: view :\n");printf("5: quit :\n");printf("******************************************:\n");printf("\n");printf("\n");printf("\n");printf("\n");scanf("%d",&ii);return ii;}struct link create(){int icount,ij=1;struct link *p,*new;while(1){if(icount){printf("输入头结点");}new=(struct link *)malloc(sizeof(struct link));printf("input the course no:\n");scanf("%s",new->cno);printf("input the course :\n");scanf("%s",new->cname);printf("input the forecourse :\n");scanf("%s",new->cforecourse);printf("input the course grade:\n");scanf("%d",&new->ia);printf("input the unit no. grade:\n");scanf("%s",new->cunitno);printf("input the unit name:\n");scanf("%s",new->cunitname);new->next=NULL;if(icount){head=new;p=new;printf("the fist add success:\n");getchar();getchar();icount=0;}else{p->next=new;printf("\n");p=p->next;printf("add success:\n");printf("\n");getchar();}printf("input 0 to end input:\n");scanf("%d",&ij);if(ij==0){break;}}}struct link search(){struct link *p;char ckeyname[10];p=head;printf("please input the name you want to view:\n");scanf("%s",ckeyname);while(strcmp(ckeyname,p->cname)!=0&&p->next!=NULL){p=p->next;}if(p->next==NULL){printf("no this position:\n");}else{printf("found it:\n");printf("%s,%s,%s,%d,%s,%s",p->cno,p->cname,p->cforecourse,p->ia,p->cunitno,p->cunitna me);}}struct link delete(){struct link *p,*q,*r;char ckeyname[10];r=head;p=r->next;q=p->next;printf("please input the name you want to del:\n");scanf("%s",ckeyname);while(strcmp(ckeyname,p->cname)!=0&&r->next!=NULL){r=r->next;p=p->next;q=q->next;}if(r->next==NULL){printf("no this position:\n");}else{printf("found it:\n");printf("%s,%s,%s,%d,%s,%s",p->cno,p->cname,p->cforecourse,p->ia,p->cunitno,p->cunitna me);r->next=p->next;printf("delete success:\n");getchar();getchar();}}void output(){struct link *p,*q;p=head;p=p->next;q=head;if(q->next==NULL){printf("no record:\n");}else{while(p->next){printf("%s,%s,%s,%d,%s,%s",p->cno,p->cname,p->cforecourse,p->ia,p->cunitno,p->cunitna me);printf("\n");p=p->next;}printf("%s,%s,%s,%d,%s,%s",p->cno,p->cname,p->cforecourse,p->ia,p->cunitno,p->cunitna me);}}void quit(){exit(0);}void main(){int ia=1;head=NULL;while(ia!=5){ia=menu();switch(ia){case 1:create();break;case 2:search();break;case 3:delete();break;case 4:output();break;case 5:quit();break;default:printf("input wrong:\n");}}}#include<stdio.h>#include<stdlib.h>#include<string.h>typedef struct{char num[15];char name[20];char credit[10];char clas[20];char teacher[20];}student;student pe[80];int menu_select(){char c;do{system("cls");printf("\n");printf("\n");printf(" 欢迎使用课程信息管理系统\n");printf("\n");printf("\n");printf(" 课程信息管理系统\n");printf("\n");printf(" 1. 增加记录\n");printf(" 2. 显示记录\n");printf(" 3. 查询记录\n");printf(" 4. 修改记录\n");printf(" 5. 删除记录\n");printf(" 6. 存储记录\n");printf(" 0. 退出程序\n");printf("\n");printf("\t\t请您选择(0-6):");c=getchar();}while(c<'0'||c>'6');return(c-'0');}int Input(student per[],int n){int i=0;char sign,x[10];while(sign!='n'&&sign!='N'){printf("\t课程编号:");scanf("\t%s",per[n+i].num);printf("\t课程名称:");scanf("\t%s",per[n+i].name);printf("\t学分:");scanf("\t%s",per[n+i].credit);printf("\t选修课号:");scanf("\t%s",per[n+i].clas);printf("\t任课教师:");scanf("\t%s",per[n+i].teacher);gets(x);printf("\n\t是否继续添加?(Y/N)");scanf("\t%c",&sign);i++;}return(n+i);}void Display(student per[],int n){int i;printf("-------------------------------------------------------------------------------\n");/*格式*/printf("课程编号课程名称学分选修课号任课教师\n");printf("-------------------------------------------------------------------------------\n");for(i=1;i<n+1;i++){printf("%-12s%-12s%-15s%-18s%s\n",per[i-1].num,per[i-1].name,per[i-1].credit,per[i-1].cla s,per[i-1].teacher);if(i>1&&i%10==0){printf("\t-----------------------------------------\n");printf("\t");system("pause");printf("\t-----------------------------------------\n");}}printf("------------------------------------------------------------------------------\n");system("pause");}int Delete_a_record(student per[],int n) //删除学生记录函数{char s[20];int i=0,j;printf("\t请输入想删除记录中的课程编号:");scanf("%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有此科目!\n");return(n);}for(j=i;j<n-1;j++){strcpy(per[j].num,per[j+1].num);strcpy(per[j].name,per[j+1].name);strcpy(per[j].credit,per[j+1].credit);strcpy(per[j]. clas,per[j+1]. clas);strcpy(per[j]. teacher,per[j+1]. teacher);}printf("\t\t\t已经成功删除!\n");return(n-1);}void Query_a_record(student per[],int n) //查询学生记录{int m;printf("\t\n请选择查询方式:\n");printf("\\n");printf("1------课程编号\n");printf("2------课程名称\n");printf("3------返回\n");printf("\n");printf("请选择:");scanf("%d",&m);while(m!=1&&m!=2&&m!=3){printf("输入错误，请重新选择:");scanf("%d",&m);}if(m==1) // 按课程编号查询{char s[20];int i=0;printf("\t请输入想查询的课程编号:");scanf("\t%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有这个科目!\n");return;}printf("\t课程名称: %s\n",per[i].name);printf("\t学分: %s\n",per[i]. credit);printf("\t选修课号: %s\n",per[i].clas);printf("\t任课教师: %s\n",per[i].teacher);} ;if(m==2) //按课程名称查询{char s[20];int i=0;printf("\t请输入想查询的课程名称:");scanf("\t%s",s);while(strcmp(per[i].name,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有该科目!\n");return;}printf("\t课程编号%s\n",per[i].num);printf("\t学分: %s\n",per[i].credit);printf("\t选修课号: %s\n",per[i].clas);printf("\t任课教师: %s\n",per[i].teacher);} ;}void Change(student per[],int n) //修改课程记录{char s[20];int i=0;printf("\t请输入想修改的课程信息管理系统中的课程编号:");scanf("%s",s);while(strcmp(per[i].num,s)!=0&&i<n) i++;if(i==n){printf("\t系统中没有该科目!\n");return;}printf("\t课程编号:");scanf("\t%s",per[i].num);printf("\t课程名称:");scanf("\t%s",per[i].name);printf("\t学分:");scanf("\t%s",per[i].credit);printf("\t选修课号:");scanf("\t%s",per[i].clas);printf("\t任课教师:");scanf("\t%s",per[i].teacher);printf("\t修改成功！");}void WritetoText(student per[],int n){int i=0;FILE *fp; //定义文件指针char filenum[20]; //定义文件名printf("\t保存到文件\n"); //输入文件名printf("\t请输入所保存的文件名:");scanf("\t%s",filenum);if((fp=fopen(filenum,"w"))==NULL){printf("\t无法打开文件\n");system("pause");return;}fprintf(fp,"****************************************** 课程信息管理系统**********************************\n");fprintf(fp," 课程编号课程名称学分选修课号任课教师\n");fprintf(fp,"------------------------------------------------------------------------------------------\n");while(i<=n){fprintf(fp,"%-10s%-10s%-15s%-18s%%s\n",per[i-1].num,per[i-1].name,per[i-1].credit,per[i-1].clas,per[i-1].teacher);i++;}fprintf(fp,"------------------------------------------------------------------------------------------\n");fprintf(fp,"***************************************共有%d条记录****************************************\n",n);fclose(fp); /*关闭文件*/printf("成功保存\n");}int main(){int n=0;for(;;){switch(menu_select()){case 1:printf("\n\t请增加记录到系统\n");n=Input(pe,n);break;case 2:printf("\n\t\t\t 课程信息管理系统记录表\n");Display(pe,n);break;case 5:printf("\n\t从系统中删除记录\n");n=Delete_a_record(pe,n);printf("\t");system("pause");break;case 3:printf("\n\t在系统中查找记录\n");Query_a_record(pe,n);printf("\t");system("pause");break;case 4:printf("\n\t修改系统中的记录\n");Change(pe,n);printf("\t");system("pause");break;case 6:printf("\n\t保存功能\n");WritetoText(pe,n);printf("\t");system("pause");break;case 0:printf("\n\t\t谢谢您的使用，再见。