指针变量的三种表现形式

<pre name="code" class="cpp">struct student{     int num;     char name[20];     char sex;     float score;};//     结构指针变量（3种形式）     struct student student1={1,"jereh",'M',89};     struct student *p;     p=&student1;     printf("name为：%s\n",student1.name);//     printf("name为：%s\n",(*p).name);//     printf("name为：%s\n",p->name);