结构体

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>

typedef struct Peo {
    int age;
    char name[32];
}peo;

void copy1(peo *obj1, peo *obj2)
{
    *obj1 = *obj2;//可以直接整体赋值
}

void copy2(peo *obj1, peo *obj2)
{
    obj1->age = obj2->age;//也可以单个赋值
    strcpy(obj1->name, obj2->name);
}
int main()
{
    peo a = {1,"xiaoming"};
    peo aa = a;//支持整体赋值，故后面指针解引用也可以整体赋值
    printf("%d %s\n", aa.age, aa.name);

    peo aaa;
    copy2(&aaa, &a);
    printf("%d %s\n", aaa.age, aaa.name);

}