C语言结构体指针案例解析

​#include<stdio.h>
#include<string.h>
 
typedef struct student{
int id;
char name[10];
char sex;
}stu;   //结构体别名
 
void PrintStu(stu *student);
int main()
{
    //结构体对象
    stu stu1;
    printf("sizeof of stu1 is:%d\n",sizeof(stu1));
    stu1.id=2014;
    strcpy(stu1.name,"zhangfei");
    stu1.sex='m'; 
    PrintStu(&stu1); 
 
    printf("***************\n");
 
	//结构体指针
	stu *s = (stu*)malloc(sizeof(stu)); //申请堆内存
	s->id = 2018;
	strcpy(s->name, "zhangfei");
	s->sex = 'g';
	PrintStu(s);
 
    return 0;
}
void PrintStu(stu *student)
{
    printf("stu1 id is :%d\n",student->id);
    printf("stu1 name is :%s\n",student->name);
    printf("stu1 sex is :%c\n",student->sex);
 
}
 
​