如何在Windows 7中确定物理扇区大小(例如,如果我有一个具有4,096字节扇区的高级格式驱动器而不是传统的512字节扇区)？
我知道通过单击文件并获取属性我们可以找到NTFS 群集大小,但这与硬盘驱动器的扇区大小不同.
注意:我们询问Windows 7,因为它(和Windows Vista SP1)了解4096高级格式化硬盘的存在.
我有一个描述棋子的课程.我为Board中的所有类型片段制作了一个类,例如Pawn,Queen,keen等...我在Pawn类中遇到麻烦我想转换为Queen或其他有类的对象(当pawn goto第8行然后转换为另一种东西)我该怎么做？
class Pawn:
def __init__(self ,x ,y):
self.x = x
self.y = y
def move(self ,unit=1):
if self.y ==7 :
self.y += 1
what = raw_input("queen/rook/knight/bishop/(Q,R,K,B)?")
# There is most be changed that may be convert to:
# Queen ,knight ,bishop ,rook
if self.y != 2 and unit == 2:
print ("not accesible!!")
elif self.y ==2 and unit == 2:
self.y += 2
elif unit == 1:
self.y += 1
else:
print("can`t move over there")
我使用此配置来防止我的服务器上出现类似 DOS 的洪水：
limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s;
limit_req_zone $binary_remote_addr zone=sms:10m rate=1r/m;
upstream main_server{
server web_instance_1:8000;
}
server {
limit_req zone=one burst=5;
listen 80;
server_name something.com;
return 301 https://$host$request_uri;
}
server {
listen 443 ssl;
server_name something.com;
ssl on;
ssl_certificate /etc/nginx/ssl/chained.crt;
ssl_certificate_key /etc/nginx/ssl/nginx.key;
location / {
limit_req zone=one burst=5;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass https://main_server;
}
location /rest/sms {
limit_req zone=sms burst=5;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass https://main_server;
}
location /WebSocket …下面是错误的完整跟踪。请让我知道什么可以解决这个问题：
(env) C:\Users\LENOVO\Desktop\SD\backend>python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Users\LENOVO\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Users\LENOVO\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\utils\autoreload.py", line 77, in raise_last_exception
raise _exception[1]
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\core\management\__init__.py", line 337, in execute
autoreload.check_errors(django.setup)()
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "C:\Users\LENOVO\Desktop\SD\backend\env\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS) …我遇到了XOR双链接列表的问题,该列表有一个必须包含节点的NEXT和PREV指针的指针.我必须xor地址指针这样做,但我不能.我可以分配一个与两个地址进行异或的内存地址但是我无法获得其地址的值(这有分段错误错误):
int main(){
int* ptr = new int;
int *ptr2 = new int;
ptr2 = (int*)((unsigned long)ptr ^ (unsigned long)ptr2);
*ptr2= 5; /here has segmentation fault
cout <<*ptr2;
return 0;
为什么这段代码有错误？我该如何解决？
感谢您的回复,但我无法转移我的想法,换句话说我说我的问题:通常我们有一个指针,通过" new "(用c ++)关键字为它分配内存空间.我们的指针保留的这个地址是由os确定的,对吗？例如,指针指向它的地址是0x8f3400b(这是可以保留的内存空闲的地方)我想通过不使用像这样的代码的新关键字来手动执行此操作:
int* ptr1 = (int*) 0x2355;
int* ptr2 = (int*) 0x23ff;
现在我不知道地址0x2355和0x23ff是否可以保留？然后我决定" 新 "这些指针,然后对它们进行异或,如下所示:
int* ptr1 = new int //ptr1 is now manage by OS
int* ptr2 = new int //like ptr1 ...
然后我想要对这些指针进行异或,并建立一个新的空间来附加一个节点,这是第三个节点,但我不能解决它是正确的但是当我想评估它时发生了分段错误:
int* ptr1 = new int; // for example the address …当$ _SESSION ['user']不为空(用户登录)时,我想将login.php重定向到index.php
<?php
session_start();
if (isset($_SESSION['user'])){
header ('refresh:3 ; URL:index.php');
}
?>
但是当用户登录页面时没有重定向到index.php