数据结构之结构体malloc跨函数使用内存

#include <stdio.h>
#include <string.h>
#include <malloc.h>

struct Student {
	int sid;
	int age;
};
struct Student * createStudent();
void showStudent(struct Student *);
int main() {

 struct Student * ps ;

 ps=createStudent();
 showStudent(ps);

 while (true){}

}

struct Student * createStudent() {
	//使用malloc函数动态创建
	struct Student * p= (struct Student *)malloc(sizeof(struct Student));
	p->sid = 199;
	p->age = 99;

	return p;
}


void showStudent(struct Student * q) {
	printf("%d  %d", q->sid, q->age);
}