https://blog.youkuaiyun.com/cumirrorzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/cumirror/article/details/7848426https://blog.youkuaiyun.com/cumirror/article/details/7848426cumirrorThu, 09 Aug 2012 23:48:25 +0800https://blog.youkuaiyun.com/cumirror/article/details/7054496https://blog.youkuaiyun.com/cumirror/article/details/7054496cumirrorFri, 09 Dec 2011 22:38:50 +0800https://blog.youkuaiyun.com/cumirror/article/details/6688412https://blog.youkuaiyun.com/cumirror/article/details/6688412cumirrorMon, 15 Aug 2011 15:25:34 +0800https://blog.youkuaiyun.com/cumirror/article/details/6676770https://blog.youkuaiyun.com/cumirror/article/details/6676770cumirrorWed, 10 Aug 2011 20:38:43 +0800https://blog.youkuaiyun.com/cumirror/article/details/6675411https://blog.youkuaiyun.com/cumirror/article/details/6675411cumirrorWed, 10 Aug 2011 12:58:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/6644815https://blog.youkuaiyun.com/cumirror/article/details/6644815cumirrorMon, 01 Aug 2011 19:35:08 +0800https://blog.youkuaiyun.com/cumirror/article/details/6632986https://blog.youkuaiyun.com/cumirror/article/details/6632986cumirrorMon, 25 Jul 2011 21:00:57 +0800https://blog.youkuaiyun.com/cumirror/article/details/6584149https://blog.youkuaiyun.com/cumirror/article/details/6584149cumirrorMon, 04 Jul 2011 18:56:49 +0800https://blog.youkuaiyun.com/cumirror/article/details/6572982https://blog.youkuaiyun.com/cumirror/article/details/6572982cumirrorTue, 28 Jun 2011 16:21:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/6310298https://blog.youkuaiyun.com/cumirror/article/details/6310298cumirrorFri, 08 Apr 2011 18:04:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/6283655https://blog.youkuaiyun.com/cumirror/article/details/6283655cumirrorMon, 28 Mar 2011 15:13:00 +0800前几天看代码，发现有类似这样的结构：
 
TAILQ_FOREACH(np, &head, entries){ printf("%d %d/n", np->a1, np->a2); } 
我没太多代码编写经验，初读的时候能模糊知道和for_each()函数类似，但十分好奇是如何实现了,后来在发现引用了queue.h头文件，是freebsd里定义的一头文件，采用宏定义的形式实现了4种基本的数据结构，没做太多深入的理解，我简单把其中的Tail queue拿]]>https://blog.youkuaiyun.com/cumirror/article/details/6276581https://blog.youkuaiyun.com/cumirror/article/details/6276581cumirrorFri, 25 Mar 2011 09:49:00 +0800前几天大家讨论DNS协议时，突然发现一些字段长度与实际编码不一致。
 
 
后来仔细看了DNS协议，发现，在返回结果中有许多域名可能是重复的，为了避免不必要的开销，DNS协议中使用了压缩方法。
 
当一个域名中的标识符是压缩的，它的单记数字节中的最高两位被置为11，剩下的14bit说明实际域名所在位置相对DNS起始表示字段的偏移。
 
插图片太麻烦了...就简单的写写记录下来，感兴趣的自己再去深入看看。
 ]]>https://blog.youkuaiyun.com/cumirror/article/details/6247561https://blog.youkuaiyun.com/cumirror/article/details/6247561cumirrorMon, 14 Mar 2011 10:21:00 +0800
int main()
{
int* a[5];
int (*b)[5];
int i = 2, j = 3, k = 4; 
b = a;
a[0] = &i;
printf("%d  %d %d/n", *a, *a[0], i);
printf("%d  %d %d/n", a, a[0], &i);
printf("%d  ", b);
b++;
printf("%d/]]>https://blog.youkuaiyun.com/cumirror/article/details/6232282https://blog.youkuaiyun.com/cumirror/article/details/6232282cumirrorTue, 08 Mar 2011 18:05:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/6177835https://blog.youkuaiyun.com/cumirror/article/details/6177835cumirrorThu, 10 Feb 2011 22:34:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/6173399https://blog.youkuaiyun.com/cumirror/article/details/6173399cumirrorSun, 06 Feb 2011 18:21:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/5888907https://blog.youkuaiyun.com/cumirror/article/details/5888907cumirrorThu, 16 Sep 2010 17:10:00 +0800下午写的，看abap代码时，有些注释行不想要，正好用批处理来解决。
其中扩展了下，使得代码中的空行也能输出。
 
 
@rem 注释在行首的才能判断出来...
@echo off
@rem .则输出空行
@echo.>editaaa.txt
 SetLocal EnableDelayedExpansion 
for /f " tokens=1,* delims=:" %%i in ('findstr /n]]>https://blog.youkuaiyun.com/cumirror/article/details/5886712https://blog.youkuaiyun.com/cumirror/article/details/5886712cumirrorWed, 15 Sep 2010 19:11:00 +0800最新想学习批处理，在网上搜索信息时看到百度上的一个问题就自己写了下。
问题地址：
http://zhidao.baidu.com/question/101833311
 
对很多东西不熟，费了一下午才完成要求，写的批处理程序如下：
@rem 这个程序实现了把文件中相同行的内容提取出来 @rem 注意SetLocal与EndLocal，用它使得上面for中的环境变量不会对下面for循环中的环境变量产生影响 @rem 现在程序执行不能得到正确结果]]>https://blog.youkuaiyun.com/cumirror/article/details/5607202https://blog.youkuaiyun.com/cumirror/article/details/5607202cumirrorWed, 19 May 2010 12:35:00 +0800https://blog.youkuaiyun.com/cumirror/article/details/5596916https://blog.youkuaiyun.com/cumirror/article/details/5596916cumirrorSun, 16 May 2010 11:06:00 +0800