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explaining what we need to know. Write a simple small example. Use the C + + self-rtti program at compile time. Note that is at compile time. Specific practices: 1. To use the typeID keyword typeid (object) typeID (class name) 2. First to include the header file 3. Start the C + + own type. Properties, configuration Properties, C + +, language-enabled run-time type information command line Plus, we can just add/gr. For example: 　　 1. First we create two classes. One is Cdog one is

be randomly lost, the shell will search forward from the last history command, and the first match will be run. )[[email protected]] #!rpmList all history by screen:[[Email protected]]# History | MoreClear the history of all historical commands now.[[email protected]] #history-Ccat, tail and watchAll of the system's logs are under/var/log (detailed use can be self-check, appendix lists some frequently used logs)Cat/var/log/syslog et Cat/var/log/*.log

CCat Zdd Browse the contents of a ZDD fileCat Zdd1 Zdd2 Browsing the contents of multiple filesCat-n ZDD Browse the contents of a file Zdd and display line numbersCD back to the start directory, that is, just logged into the system directory, CD behind no parametersCD/back to the root directoryCd.. Return to the top level directoryCD-Return to the most recently used directoryDDf-kh Viewing disk informationDu-sh FolderName View the folder size,-H indic

can be randomly lost, theshell will search forward from the last history command, and the first matching command will be executed. )[[email protected]] #!rpmList all history on a per-screen basis:MoreImmediately clears the history of all current historical commands[[email protected]] #history-CCat, tail and watchSystem all the logs are under the/var/log to see their own (specific use can be self-check, appendix lists some common logs)Cat/var/log/sysl

Php efficiently removes array duplicates. This article is a simple and efficient code for removing duplicate values from one-dimensional arrays. For more information, see. The code is as follows: Copy the code? Php $ aarray (aCat, bDog, cCat); this article is a simple and efficient code for removing duplicate values from one-dimensional arrays. if you have any need, just take a look. The code is as follows: $ A = array

Do not use Sbjson (json-framework)Article DirectoryI do not know why, in iOS development, many people use Sbjson (also known as json-framework) to do JSON parsing library. I think this is because Sbjson is the first JSON parsing library to appear on iOS. But with the popularity of iOS development, more and more excellent JSON parsing library has emerged, Sbjson and they compared to the performance of a large gap.Now the main popular JSON parsing libraries in the iOS industry are:Nsjsonserializat

Today, I encountered a problem with my buddy's server CPU information. I am going to discuss it with you. Run the following commands to view CPU information in Linux: cat /proc/cpuinfo |grep "cpu cores"|uniqcat /proc/cpuinfo |grep "physical id"|sort|uniq|wc -lcat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -ccat /proc/cpuinfo | grep -E "physical id|cpu cores" |sed 'N;s/\n/ /;'| sort| uniqcat /proc/cpuinfo |grep "processor" |wc -l Question 1: shoul

CCat Zdd Browse the contents of a ZDD fileCat Zdd1 Zdd2 Browsing the contents of multiple filesCat-n ZDD Browse the contents of a file Zdd and display line numbersCD back to the start directory, that is, just logged into the system directory, CD behind no parametersCD/back to the root directoryCd.. Return to the top level directoryCD-Return to the most recently used directoryDDf-kh Viewing disk informationDu-sh FolderName View the folder size,-H indic

shell will search forward from the last history command, and the first matching command will be executed. )[[email protected]] #!rpmList all history on a per-screen basis:[[Email protected]]# History | MoreImmediately clears the history of all current historical commands[[email protected]] #history-Ccat, tail and watchSystem all the logs are under the/var/log to see their own (specific use can be self-check, appendix lists some common logs)Cat/var/lo

randomly lost, theshell will search forward from the last history command, and the first matching command will be executed. )[[email protected]] #!rpmList all history on a per-screen basis:MoreImmediately clears the history of all current historical commands[[email protected]] #history-CCat, tail and watchSystem all the logs are under the/var/log to see their own (specific use can be self-check, appendix lists some common logs)Cat/var/log/syslog et C

!?? Represents a string that can be randomly lost, theshell will search forward from the last history command, and the first matching command will be executed. )[[email protected]] #!rpmList all history on a per-screen basis:MoreImmediately clears the history of all current historical commands[[email protected]] #history-CCat, tail and watchSystem all the logs are under the/var/log to see their own (specific use can be self-check, appendix lists some

Original URL: http://blog.devtang.com/2012/05/05/do-not-use-sbjson/I do not know why, in iOS development, many people use Sbjson (also known as json-framework) to do JSON parsing library. I think this is because Sbjson is the first JSON parsing library to appear on iOS. But with the popularity of iOS development, more and more excellent JSON parsing library has emerged, Sbjson and they compared to the performance of a large gap.Now the main popular JSON parsing libraries in the iOS industry are:

// For more information, see modify the marchlibrary of csdn ccat.// C # 1.x implements "unique arraylist of strongly typed elements"Using system;Using system. collections; /// The type of any element should be equal to the specified type or be a subclass of the specified type./// For the value type, it is best to pack it before use./// Used as a substitute before the C # 1.x language implements the generic function (runtime error ).// Method 1: Impl

, pix04a, pix4b, pix05, pix06, pix07, pix08] · Perform a front-end test to confirm the correctness of the variable settings and the validity of the recording process.· Output"Variant"[Pix09]Catt_z_pfcg_copyrole_v1.txtObjective: To copy a role, modify the description, and generate a parameter file Source_role source role name New_role new role nameDescription Param_name Automatic Generation [null] (3) apply pfcg to batch allocate roles to users to complete user comparisonHere I

Array and hash table Ruby arrays and hash tables are index sets. Both objects are saved and can be read by keys. The key of the array is a number, but the hash table supports the object as the key. They all grow with the addition of new elements. In terms of access elements, the array efficiency is relatively high, but the hash table is more flexible. Different types of objects can be stored in both arrays and hash tables. You can use an array to save numbers, strings, and floating-point numbe