如何从在另一个函数中修改的结构的字符指针成员中获取值

typedef struct {
    char* name;
    int age;
} Person;

void modifyPerson(Person* person, const char* newName) {
    // 释放原有的name内存
    free(person->name);
    
    // 分配新的内存并复制新的name
    person->name = malloc(strlen(newName) + 1);
    strcpy(person->name, newName);
}

void printPerson(const Person* person) {
    printf("Name: %s\n", person->name);
    printf("Age: %d\n", person->age);
}

int main() {
    Person person;
    person.name = malloc(strlen("John") + 1);
    strcpy(person.name, "John");
    person.age = 25;
    
    modifyPerson(&person, "Alice");
    printPerson(&person);
    
    // 释放内存
    free(person.name);
    
    return 0;
}

Name: Alice
Age: 25