#include <stdio.h>
#include <string.h>
int main()
  {struct student
    {long num;
     char name[20];
     char sex;
     float score;
   };
   struct student stu_1;          // 定义struct student类型的变量stu_1 
   struct student * p;            // 定义指向struct student 类型数据的指针变量ｐ 
   p=&stu_1;                      // ｐ指向stu_1 
   stu_1.num=10101;               // 对结构体变量的成员赋值 
   strcpy(stu_1.name,"Li Lin");
   stu_1.sex='M';
   stu_1.score=89.5;
   printf("No.:%ld\nname:%s\nsex:%c\nscore:%5.1f\n",stu_1.num,stu_1.name,stu_1.sex,stu_1.score);           // 输出结果 
   printf("\nNo.:%ld\nname:%s\nsex:%c\nscore:%5.1f\n",(*p).num,(*p).name,(*p).sex, (*p).score);
   return 0;
  }