#include <stdio.h>
int main()
{
    // 1.定义结构体类型 struct person （并不会分配存储空间）
 struct person     
{ 
	int age;  
   double height;
   char *name;
};  
   //2.根据结构体类型，定义结构体变量    （真正分配存储空间）
struct person p ={20,1.55,"jack"}; 
    p.age = 30;      //修改结构体元素的值
    p.name = "rose"; 
    printf("age =%d,name = %s,height = %f\n",p.age,p.height,p.name);
    return 0;
}

int main()
{
    struct student
     {
           int age;
           double height;
           char *name;
     };

   struct student stu = {20,1.78,"jack"};

}

int main()
{
   struct student 
    {
       int age;
       double height;
       char *name;
     }stu;
   struct student stu2;  
 }

int main()
{
   struct {
                int age;
                char *name;
             }stu;
}