typedef的用法

#include <stdio.h>

typedef struct Student
{
    int sid;
    char name[100];
    char ***;
}* PSTU,STU; //PSTU 等价于struct Student * ,STU 等价于struct Student

int main(void)
{
    STU stu;
    PSTU ps = &stu;
    ps->sid =99;
    printf("%d\n",ps->sid);

    return 0;
}