老师说跟 堆 栈 有关
#include <stdio.h>
#include <stdlib.h>
typedef struct student{
    int number;   //学号
    int age;      //年龄
} student;
student * getStudent(){
    student stu;
    stu.age = 100;   //年龄默认初始为岁
    stu.number = 100; //学号默认初始为号
    return &stu;
}

结果是:student 100 is 100.
student 4241459 is 4325404.
为什么第二个是那样的呢???
void main(){    
    student * ptr = getStudent();    
    int age = ptr->age, number = ptr->number;
    printf("student %d is %d .\n",number,age);
    age = ptr->age, number = ptr->number;
    printf("student %d is %d .\n",number, age);
}

没,我是第一次,可能是我同学吧,可以把那个地址给我吗?我看一下你的解释

是不是释放后,在运行原来的那段代码,结果都是随机的呢?