c 用指针操作结构体数组

重点：指针自加，指向下一个结构体数组单元

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define max 10
#define min 3

typedef struct Stu{
    char    * name;
    int     age;
    int   score;
} Stu;

//输入
void input(Stu *);
void output(Stu *);
void clean(Stu *);

void main(void)
{
  Stu student[min];   
  input(student);  //相当于传入&student[0]

  output(student);
  clean(student);
}

void input(Stu * student)
{
   char temp[20];
   int i=0;
   puts("please input name");
   while(i<min & gets(temp) != NULL & temp[0] != '' )
   {
          student->name = (char *) malloc(strlen(temp)+1);
          strcpy(student->name,temp);
          
          puts("age ?");
          scanf("%d",&student->age);
          puts("score ?");
          scanf("%d",&student->score);
          
          i++;
          student++;  //指针自加，指向下一个数组单元
          
          while(getchar() != '
')
            continue;
         
         if(i<min)
            puts("next name");
   }

}

void output(Stu * student)
{
   int i=0; 
   while(i<min){
       printf("%s---%d---%d
",student->name,student->age,student->score);
       i++;
       student++;
   }
    
}

void clean(Stu * student)
{
   int i=0; 
   while(i<min){
        free(student->name); 
       i++;
       student++;
   }
}