https://blog.youkuaiyun.com/ga6840zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/ga6840/article/details/7028740https://blog.youkuaiyun.com/ga6840/article/details/7028740ga6840Wed, 30 Nov 2011 21:09:47 +0800https://blog.youkuaiyun.com/ga6840/article/details/6275122https://blog.youkuaiyun.com/ga6840/article/details/6275122ga6840Thu, 24 Mar 2011 20:22:00 +0800https://blog.youkuaiyun.com/ga6840/article/details/6227483https://blog.youkuaiyun.com/ga6840/article/details/6227483ga6840Sun, 06 Mar 2011 19:55:00 +0800https://blog.youkuaiyun.com/ga6840/article/details/6221907https://blog.youkuaiyun.com/ga6840/article/details/6221907ga6840Thu, 03 Mar 2011 21:53:00 +0800mysql.exe -uroot -pg131517 //进入时省略了host参数,默认是'localhost'。 mysql> create database twbook; mysql> create database twbook2; mysql> show databases; mysql> delete database twbook2; mysql> show dat]]>https://blog.youkuaiyun.com/ga6840/article/details/6188572https://blog.youkuaiyun.com/ga6840/article/details/6188572ga6840Wed, 16 Feb 2011 17:11:00 +0800成功 ]]>https://blog.youkuaiyun.com/ga6840/article/details/6187084https://blog.youkuaiyun.com/ga6840/article/details/6187084ga6840Wed, 16 Feb 2011 00:32:00 +0800https://blog.youkuaiyun.com/ga6840/article/details/6183130https://blog.youkuaiyun.com/ga6840/article/details/6183130ga6840Mon, 14 Feb 2011 01:03:00 +0800https://blog.youkuaiyun.com/ga6840/article/details/6181553https://blog.youkuaiyun.com/ga6840/article/details/6181553ga6840Sat, 12 Feb 2011 19:54:00 +0800
 
By ga6840]]>https://blog.youkuaiyun.com/ga6840/article/details/6177612https://blog.youkuaiyun.com/ga6840/article/details/6177612ga6840Thu, 10 Feb 2011 18:28:00 +0800
Note:
   This classification generally applies only to
 UDP traffic, since NATs and firewalls reject incoming TCP
 connection attempts unconditionally unless specifically configured to
 do otherwise.
 
Basic NAThttps://blog.youkuaiyun.com/ga6840/article/details/6174833https://blog.youkuaiyun.com/ga6840/article/details/6174833ga6840Tue, 08 Feb 2011 20:07:00 +0800在codeWarrior编译的程序 和 win7下vs10编译的程序 利用24L01无线模块进行通讯时.除了学到了 二者程序存储的机器字节顺序不同,在使用如short这样的大于1字节的变量类型 需要进行字节的逆序 以外 ，在编写协议的时候想用结构体简化程序,减少使用memcpy, 但我知道结构体在编译的时候编译器一般存在一些“字节对齐”规则（包括了align of member  和 structure alignment） ,之前只是很马虎的了解了一下,今天又认真了解了“字节对齐”.
https://blog.youkuaiyun.com/ga6840/article/details/6173674https://blog.youkuaiyun.com/ga6840/article/details/6173674ga6840Mon, 07 Feb 2011 04:38:00 +0800
DNS分为根级别的，区域级别的，国家级别的，省级别的，市级别的.....根DNS分布在日本，美国和欧洲,
更新方式应该是，ISP商先将DNS更新到根，根在更新到区域，区域更新到国家，国家在更新到省....一般更新下来也要十几小时.
解析就正好相反，先查询自己机器上的，如果还没有就查询在上一级的，最后查询根DNS。(迭代查询)]]>https://blog.youkuaiyun.com/ga6840/article/details/6173600https://blog.youkuaiyun.com/ga6840/article/details/6173600ga6840Mon, 07 Feb 2011 00:32:00 +0800举HBITMAP的例子，
在windef.h中对句柄有一个定义的宏 ：DECLARE_HANDLE()
在winNT.h中又有 DECLARE_HANDLE(HBITMAP);  
具体展开：
 
#define DECLARE_HANDLE(name) struct name##__{int unused;}; typedef struct name##__ *name
 
我们知道 ,  "##" 是"沾黏符"
]]>