C++輸出字符指針指向的地址

int main()
{
    char *s2 = "jwdajkj";
    char *s1 = new char[strlen(s2)+1];
    
    char *s3 = static_cast<char*> (memcpy(s1, s2, strlen(s2) + 1));
    printf("%p,%p\n", s3, s1);
    cout << s3 << endl;
    cout << &s3[0] << endl;
    cout << static_cast<void*>(s3) << endl;
}

需要轉換為void*指針，重載的操作符<<遇到地址會自動輸出字符串