#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef struct Peo {
    char *name;
    int age;
}peo;


int main(void)
{
    peo p1;
    p1.name = (char *)malloc(sizeof(char) * 30);
    if (p1.name == NULL)
        return;
    strcpy(p1.name, "lihua");
    p1.age = 13;

    peo p2 = p1;
    printf("p1.name:%s p1.age:%d\np2.name:%s p2.age:%d\n",        p1.name, p1.age,p2.name,p2.age);
    if (p1.name != NULL)
    {
        free(p1.name);
        p1.name = NULL;
    }
/*不能再次释放了，这是浅拷贝，只拷贝了一份指针的副本，而没有新开辟内存空间，故不可再释放*/
    //if (p2.name != NULL)
    //{
    //    free(p2.name);
    //    p2.name = NULL;
    //}
    return 0;
}

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef struct Peo {
    char *name;
    int age;
}peo;
//深拷贝需要自己分配内存
void mycopy(peo *des,peo *soure)
{
    des->name= (char *)malloc(sizeof(char) * 30);
    strcpy(des->name, soure->name);
    des->age = soure->age;
}
int main(void)
{
    peo p1;
    p1.name = (char *)malloc(sizeof(char) * 30);
    if (p1.name == NULL)
        return;
    strcpy(p1.name, "lihua");
    p1.age = 13;

    peo p2;
    mycopy(&p2, &p1);
    printf("p1.name:%s p1.age:%d\np2.name:%s p2.age:%d\n",        p1.name, p1.age,p2.name,p2.age);
    if (p1.name != NULL)
    {
        free(p1.name);
        p1.name = NULL;
    }
    if (p2.name != NULL)
    {
        free(p2.name);
        p2.name = NULL;
    }

    return 0;
}