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iOS 之动态运行时 runtime
前言:最近研究runtime,觉得里面的东西好深,所以决定先把苹果提供的runtime.h文件简单的翻译一下,关于用法会在之后进行一些分享。/* Types */#if !OBJC_TYPES_DEFINED/// An opaque type that represents a method in...
分类:移动开发   时间:2015-05-28 17:39:55    阅读次数:392
BMP vs GIF vs JPG vs JPEG vs PNG-8 vs PNG-24
原文:http://stackoverflow.com/questions/2336522/png-vs-gif-vs-jpeg-when-best-to-useYou should be aware of a few key factors...First, there are two types...
分类:其他好文   时间:2015-05-27 20:52:37    阅读次数:729
记录一个inotify的侦听源码
#include<stdio.h>#include<stdlib.h>#include<errno.h>#include<sys/types.h>#include<sys/inotify.h>#defineEVENT_SIZE(sizeof(structinotify_event))#defineBUF_LEN(1024*(EVENT_SIZE+16))intmain(intargc,char**argv){intlength,i=0;intfd;i..
分类:其他好文   时间:2015-05-27 19:28:00    阅读次数:149
Prefer Domain- Specific Types to Primitive Types
Prefer Domain- Specific Types to Primitive TypesEinar LandreON SEPTEMBER 23, 1999, the $327.6 million Mars Climate Orbiter was lost while entering orbit around Mars due to a software error back on Eart...
分类:其他好文   时间:2015-05-27 13:55:26    阅读次数:109
C#复习中...
CIL: Common Intermediate Language 公共中间语言CLR: Common Language Runtime 公共语言运行库Creation of New Types is the essence(核心)of OOP.Type(类型) is define...
分类:Windows程序   时间:2015-05-26 22:51:02    阅读次数:195
Dynamic Programming——Reflection in the .NET Framework
The classes in theSystem.Reflectionnamespace, together withSystem.Type, enable you to obtain information about loadedassembliesand the types defined w...
分类:Web程序   时间:2015-05-26 18:08:45    阅读次数:129
Dynamic Programming——Runtime Types in Reflection
Reflection provides classes, such asTypeandMethodInfo, to represent types, members, parameters, and other code entities. However, when you use reflect...
分类:其他好文   时间:2015-05-26 17:47:45    阅读次数:85
MySQL Block Nested Loop and Batched Key Access Joins(块嵌套循环和批量Key访问连接)
Block Nested-Loop and Batched Key Access Joins Batched Key Access (BKA) Join算法通过index和join buffer访问joined表,BKA算法支持inner join,outer join 和semi join操作,....
分类:数据库   时间:2015-05-26 12:36:32    阅读次数:248
MYSQL Nested Join Optimization
table_factor的语法和标准sql比较,后者只接受table_reference,每个逗号项都等于一个inner Join,e.g.SELECT * FROM t1 LEFT JOIN (t2, t3, t4) ON (t2.a=t1.a AND t3.b=...
分类:数据库   时间:2015-05-24 12:53:27    阅读次数:151
Mysql Nested-Loop Join Algorithms
MySQL在多表之间执行join时,利用一种nested-loop algorithm 或者其变种;(嵌套循环)Nested-Loop Join Algorithm 一个简单的嵌套循环连接(NLJ)算法 从第一个表读取一行,然后传递给Join中的其他表依次读取,过程一直重复剩余的表都被Join。 ....
分类:数据库   时间:2015-05-24 11:30:38    阅读次数:166
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