20.结构作为函数的参数

#include <stdio.h>  //fopen函数的包
#include <stdlib.h> //exit()函数的包
#include <unistd.h>
//定义一个结构- 把struct Person当做一种数据类型
struct Person{
   char *name;
   int age;
   int high;
};

//成员变量作为作为参数
void sum(int, int);
//结构指针作为参数
void sumPt(const struct Person *);
//结构作为参数
void sumStruct(const struct Person);

int  main()
{
  

struct Person one = {
   .name = "大王",
   .age = 20,
   .high = 153
};  

struct Person *onePt = &one;

sum(one.age,one.high);

sumPt(onePt);

sumStruct(one);

return 0;
}

void sum(int age, int high)
{
    int total = age + high;
    printf("sum(%d,%d) = %d\n", age, high, total );
}

void sumPt(const struct Person *onePt)
{
    int total = onePt->age + onePt->high;
    printf("sum(%p) = %d\n", onePt, total );
}

void sumStruct(const struct Person one)
{
    int total = one.age + one.high;
    printf("sum(one) = %d\n", total );
}