04.c

家庭财务管理系统应用软件给家庭成员提供了一个在Windows操作系统上运行的管理平台

#include"stdio.h"
#include"stdlib.h"
struct student
   {  char name[20],sex[5],number[10];
      int  age;
      int grade;
      struct student *next;
    };
    struct student *myhead,*mythis,*mynew;
    struct student *new_records(struct student *myhead);
    void listall(struct student *myhead);

    main()
        {  char ch;
           struct student *myhead;
           myhead=NULL;
           printf("enter your choics:\n");
           scanf("%s",&ch);
        while(ch=='1'||ch=='n')
       {
         if(ch=='n') myhead=new_records(myhead);
         if(ch=='1') listall(myhead);
          scanf("%s",&ch);
       }
         printf("END");
       }

             struct student *new_records(struct student *myhead)
           {
             mynew=(struct student*)malloc(sizeof(struct student));
    
             if(myhead==NULL)
                myhead=mynew;
             else
                {mynew->next=NULL;myhead->next=mynew;}
                 printf("please input students name sex number age grade:\n");
                 scanf("%s",&mynew->name);  
                 scanf("%s",&mynew->sex);
                 scanf("%s",&mynew->number);
                 scanf("%d",&mynew->age);
                 scanf("%d",&mynew->grade);

              return mynew;
              }
      void listall(struct student *myhead)
           {   
               mythis=myhead;
               while(mythis->next!=NULL)
                   {
                      printf("name:%s\n ",mythis->name);
                      printf("sex: %s\n",mythis->sex);
                      printf("number:%s\n",mythis->number);
                      printf("age:%d\n",mythis->age);
                      printf("score:%d\n",mythis->grade);
                      mythis=mythis->next;
                    } 
            }