大一学c语言时的结课任务-同学录

#include "stdio.h"
#include "conio.h"
#define N 38
int i=0;
struct student 
{
int num;
char name[13];
char sex[5];
char qq[12];
char phone[12];
char mail[30]; 

}
fun1(struct student fun1[N])             /*      1 input(addition)     */
{ 
   char choice;
   do{ printf("num   : \n");
      fflush(stdin);
      scanf("%d",&fun1[i].num);
      printf("name[12] :\n");
      fflush(stdin);
      scanf("%s",fun1[i].name);
      printf("sex[4] :\n");
      fflush(stdin);
      scanf("%s",fun1[i].sex);
      printf("qq[11] :\n");
      fflush(stdin);
      scanf("%s",fun1[i].qq);
      printf("phone[11]   ：\n");
      fflush(stdin);
      scanf("%s",fun1[i].phone);
      printf(" mail[29]   :\n");
      fflush(stdin);
      scanf("%s",fun1[i].mail);
      i++; 
      printf(" continue to input ?(y/n) \n");
      fflush(stdin);
      scanf("%c",&choice);
     } 
   while(choice=='y'||choice=='Y');
}

fun2(struct student fun2[N])                   /*    2*delete     */
{ int k,n,m;
int num;
char choice;
do{
   printf("input the student number to delete:\n");
   fflush(stdin);
   scanf("%d",&num);
   for(k=0;k<i;k++)
    { if(num==fun2[k].num)
        { for(num;num<i;num++)
           {fun2[num-1]=fun2[num];}
            
         }
      
     }printf("After being delete the information is :\n");
      printf("num       name          sex    qq            phone             mail     \n");
      for(n=0;n<i-1;n++)
      {printf("%-11d%-14s%-8s%-14s%-17s%-11s      \n",fun2[n].num,fun2[n].name,fun2[n].sex,fun2[n].qq,fun2[n].phone,fun2[n].mail);}          
      i--;
      printf("continue to delete the information ? (y/n)\n");
      fflush(stdin);
      scanf("%c",&choice);
   
   }
while(choice=='y'||choice=='Y');
}
      

fun3(struct student fun3[N])     /* 3*amendment      */
{ int k;
char choice;
int num;
do{ printf("input the student num to amend：\n");
     fflush(stdin);
     scanf("%d",&num);
     for(k=0;k<i;k++)
      { if(num==fun3[k].num)
           {printf("old informationg is：\n");
            printf("num       name          sex    qq            phone             mail     \n");
            printf("%-11d%-14s%-8s%-14s%-17s%-11s      \n",fun3[k].num,fun3[k].name,fun3[k].sex,fun3[k].qq,fun3[k].phone,fun3[k].mail); 
            printf("input the new information ：\n");
            printf("num :\n");
            fflush(stdin);
            scanf("%d",&fun3[k].num);
            printf("name :\n");
            fflush(stdin);
            scanf("%s",fun3[k].name); 
            printf("sex :\n");
            fflush(stdin);
            scanf("%s",fun3[k].sex);
            printf("qq :\n");
            fflush(stdin);
            scanf("%s",fun3[k].qq);
            printf("phone :\n");
            fflush(stdin);
            scanf("%s",fun3[k].phone);
            printf("mail :\n");
            fflush(stdin);
            scanf("%s",fun3[k].mail);
          }
       }
            printf("continue to amend the information ？(y|n)\n");
            fflush(stdin);
            scanf("%s",&choice);
       
   }
while(choice=='y'||choice=='Y');}

fun4(struct student fun4[N])               /*   4*showing    */
{ int k;
printf("..........................................the students informations............................................\n");
printf("num      name          sex     qq            phone            mail     \n");
for(k=0;k<i;k++)
   {printf("%-9d%-14s%-8s%-14s%-17s%-11s      \n",fun4[k].num,fun4[k].name,fun4[k].sex,fun4[k].qq,fun4[k].phone,fun4[k].mail); 
}
}      

fun5(struct student fun5[N])             /*    5*searching   */
{int k;
char choice;
int num;
do{printf("input the num to searching：\n");
    fflush(stdin);
    scanf("%d",&num);
    for(k=0;k<i;k++)
     {if(num==fun5[k].num)
       { printf("num        name          sex     qq            phone            mail     \n");
         printf("%-11d%-14s%-8s%-14s%-17s%-11s      \n",fun5[k].num,fun5[k].name,fun5[k].sex,fun5[k].qq,fun5[k].phone,fun5[k].mail); 
       }
     }
       printf("continue to searching the students informations ？(y|n)\n");
       fflush(stdin);
       scanf("%s",&choice);
      
    }
while(choice=='y'||choice=='Y');
}

void main()
{ struct student stu[N];
   int num1;
   char num;
   printf("★★★★★★★★★★★★       welcome to here       ★★★★★★★★★★★★★");
printf("\n                                                              editor:dong");
do
   {printf("\n 1*input 2*delete 3*amendment 4*display 5*searching 6*addition:\n");
    scanf("%d",&num1);
    switch(num1)
      { case 1:fun1(stu);break;
        case 2:fun2(stu);break;
        case 3:fun3(stu);break;
        case 4:fun4(stu);break;
        case 5:fun5(stu);break;
    case 6:fun1(stu);break;
        default:printf("\n The number is out of range \n");
     }
     printf("\n continue to the main function ???(y/n):\n");
     fflush(stdin);
     scanf("%s",&num);
}
while(num=='y'||num=='Y');
printf("※※※※※※※※※※※Look forward to see you again !!!※※※※※※※※※※※※※");
getch();
}