puppet stuff

1, array sorting, the default ascending order, the sort () method invokes the ToString () of each item in the array, and then compares the resulting string to sort//sort (): Returns the array after sorting//var arr = [23,1,3,56,42,-1];// Arr.sort ();//alert (arr); -1,1,3,23,42,56//even though each item in the array is numeric, the sort () method compares the string//var arr = [0,1,5,10,15];//arr.sort ();//alert (arr); 0,1,10,15,5//sort () can receive a function parameter that is used to compare

: 12345678910111213141516 first_maven |-- pom.xml `-- src |-- main | |-- java | | `-- com | | `-- test | | `-- App.java | `-- resources | `-- META-INF | `-- application.properties `-- test `-- java `-- com `-- test `-- AppTest.java pom.xml: A dependency used to define or add a jar packageSrc-main: For storing Java source filessrc-test: Used to store test cases.The target folder may also appear under the project, which is used to generate the corresponding class file or t

|--pom.xml '--src |--main | | --java | | '--com | | '--Test | | '--App.java | '--Resources | '--Meta-inf | '--application.properties '--Test '--Java '--com '--Test '--Apptest.java pom.xml: A dependency used to define or add a jar package　　Src-main: For storing Java source files　　src-test: Used to store test cases.The target folder may also appea

= require (' path ');varFavicon = require (' Serve-favicon '));varLogger = require (' Morgan ');varCookieparser = require (' Cookie-parser '));varBodyparser = require (' Body-parser ')); require ('./app_api/models/db ');varRoutes = require ('./app_server/routes/index '));varRoutesapi = require ('./app_api/routes/index '));varUsers = require ('./app_server/routes/users '));varApp =Express ();//View engine SetupApp.set (' Views ', Path.join (__dirname, ' app_server '), ' views ')); App.set (' Vie

Label:1. functionDeletes a character of the specified length and inserts another set of characters at the specified starting point.2. GrammarSTUFF (character_expression, start, length, character_expression)3. ExampleThe following example removes the three characters from the 2nd position (character B) in the first string abcdef, and then inserts a second string at the beginning of the deletion, creating and returning a stringSELECT STUFF (' abcdef ',

Tags: style io ar color sp on div Art BSDECLARE @s VARCHAR (100)SET @s= ' r1-1-1 ' gets the number after the last "-"SelectREVERSE(@s) return value: 1-1-1R reverses the character. SelectLEN(@s) return value: 6 Get length SelectCHARINDEX(‘-‘,REVERSE(@s)) Return value: 2--Gets the position of the first occurrence of a string, and returns 0 Select if no character is changedSTUFF(@s,1,LEN(@s)-CHARINDEX(‘-‘,REVERSE(@s)) +1, ') return value: 1STUFFFunctionSTUFF (expression, start, length, Relacechar)

Dba_data_filesGroup BY Tablespace_name) bwhere a.tablespace_name = B.tablespace_nameand a.tablespace_name = ' xxx ';-------------------------To view the permissions that the current role XXX has:SELECT * from Dba_sys_privs where grantee= ' XXX ';-------------------------View the table space quotas for user xxx. (-1 is unrestricted)Select Tablespace_name,username,max_bytes from Dba_ts_quotas where username= ' XXX ';-------------------------Set the user MC's tablespace quota limit to 100M:Alter u

1. First PB needs UTF8 format, so it is converted from ANSI to UTF8 format to transfer2. On the receiving side, you need to convert UTF8 to ANSI to use3. You need to convert SQL from ANSI to UTF8 format before inserting a database4. The database setting character set is UTF8 ASSERT (0 = = Query (m_con, "Set NAMES UTF8", strlen ("Set NAMES UTF8" ));db_user_mail* Pmail = offline->Mutable_user_mail (); ASSERT (Pmail->has_content ());//system mail must be content Char* pcontent = Utf8

::tr1::shared_ptrError when manually releasing resources, recommended class ExplicitDo not persist in single statement, for RAII reason:The time order in which a function parameter is created between C + + is based on efficiency,std::tr1::shared_ptrIf the order is as followsNewTestshared_ptr to pass the argument.Test error then shared_ptr naturally blew up. Resource leaks.Try to replace Pass-by-value with Pass-by-reference-to-constStatic object Design (threat), multithreading security?It is diff

Reverse basic Finding important/interesting stuff in the code (2) zing Chapter 2 Call assert Sometimes, the emergence of assert () macro is also useful: Usually this macro will leak the source file name, row number and condition. The most useful information is included in the assert condition, from which we can infer the variable name or struct name. Another useful information is the file name. We can infer the type of code used. It is also possible t

Reverse basic Finding important/interesting stuff in the code (1) V. Search for interesting or important parts of the Code In modern software design, minimalism is not particularly important. It is not because programmers write a lot of code, but because many libraries are usually statically linked to executable files. If all the external libraries are moved into the external DLL file, the situation will be different. (Another reason why C ++ uses ST

infinite expansion. The Daji class not only increases the difficulty of the group members ' understanding of the code, but also increases the difficulty of troubleshooting when problems arise. In this respect, the Uiviewcontroller base class design is extremely unsuccessful: Mmuiviewcontroller. Provides easy-to-use tool classes. Some easy-to-use tools often become an integral part of the framework, solving local problems quickly and easily without introducing too much complexity. Nstimer's re

Quick-x Data Encryption I. Data Encryption As long as quick encapsulation is used Local crypto = require ("framework. crypto") -- algorithm encryption and decryption To make Function crypto. encryptxxtea (plaintext, key)Plaintext = tostring (plaintext)Key = tostring (key)Return cccrypto: encryptxxtea (plaintext, String. Len (plaintext), key, String. Len (key ))End This is something in the framework. If you are interested, take a look. Here, my encrypted data is decrypted, read, and encrypte

If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [p_stuff] ') and objectproperty (ID, n' isprocedure') = 1)Drop procedure [DBO]. [p_stuff]Go /* -- Ntext Field Processing Simulate the string processing function stuffComplete the stuff processing of the ntext field in the tableNote: The table must have the primary key (or ID field) with the column name ID, and the data type is int.If this primary key field does not exist or is of

forwards it to the Br-vlan bridge. Br-vlan This bridge will put a real tag on the packet and send it to the corresponding Br-vlan Bridge of the other compute node. The bag will be sent to Br-vlan on this bridge.On the same node2 there is also a QBR bridge in charge of the flow of incoming and out. If this is allow then the packet is sent to the vm2.In fact, when our OpenStack platform deployment is complete, Br-vlan and Br-int have been created below to see a few configuration filesNetwork node

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school, I became a good student in my impression. Remember then the class teacher is very strict, grumpy, often in class, is forced to mercy his fear of becoming good, or because after high school went to county High School, where a collection of excellent students, and I would appear so ordinary not prominent, consciously changed to behave. The purpose of recalling these details is to find the bones of their own, this other people do not know I do not know the self. This is very important, in

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operators, how to generate an operator after the answer to the operator, and later on the internet found that the Python function library has this function, as long as the easy to call it. Later did not know how to generate documents, and later on the Internet to check a bit, and found that the function is called. And so the two of them did it slowly. PSP TablePerformance analysisThe algorithm runs slowly, does not use the data structure to optimize, uses the library function extensively,

expect the demand will have random read operations, then can only use std::advance to get good use of STL algorithm, if you encounter STL data processing first see there is no corresponding STL algorithm because the STL code can be very long, all can build a file to put the global macro definition, similar to QtGlobal file . Do not skip to assign tasks, otherwise you will let subordinates do only the upper level of things The excessive publicity of personal responsibility and punishm