#include <stdlib.h>#include <string.h>#include <stdio.h>#pragma warning(disable:4996)typedef struct _Teacher{    char name[64];    int age;    struct _Teacher *next;}Teacher;int main(){    Teacher t1, t2, t3;    memset(&t1,0,sizeof(Teacher));    memset(&t2, 0, sizeof(Teacher));    memset(&t3, 0, sizeof(Teacher));    t1.next = &t2;    t2.next = &t3;    t3.next = NULL;    t1.age = 20;    t2.age = 30;    t3.age = 40;    Teacher *p = &t1;    // 分别打印t1,t2,t3    while (p)    {        printf("年龄为：%d\n",p->age);        p = p->next;    }    system("pause");    return 0;}