C/C++ 结构体 函数传递

 #include <stdio.h>
 #include <stdlib.h>

 struct student{
     int num;
     char str[];
     double dec;
 };

 void scan(struct student *stu){
 //    scanf("%d%s%lf", &stu->num, stu->str, &stu->dec);
     scanf("%d%s%lf", &(*stu).num, (*stu).str, &(*stu).dec);//.运算符优先级大于*
 }

 void print(struct student stu){
     printf("%d %s %lf\n", stu.num, stu.str, stu.dec);
 }

 int main(){

     struct student stu;

     scan(&stu);
     print(stu);

     return ;
 }
 /*
 20 字符串 20.02
 */