C语言结构体指针

#include<stdio.h>

typedef struct student
{
    char name[20];
    int age;
}STU;

void fun(STU *p){
    strcpy(p->name, "张三");
    p->age=18; //(*p).age=18
}

int main(){
    STU girl;
    fun(&girl);
    printf("name=%s age=%d\n", girl.name,girl.age);
    return 0;
}