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a clearly-optimized part of the loop (in C + +, the class is repeatedly created, can the operation of string in C # be optimized with StringBuilder)?There are not many loops in the code, so so-called optimizations are not necessary. There is no obvious optimization part. (3) Will the system and network calls time out? How to deal with?No network calls, this should also not consider ...6. ReadabilityHow readable is the code? Is there enough comment?The code is readable and has enough comments .7

This article introduces the content of the PHP extension development test List, has a certain reference value, now share to everyone, the need for friends can refer to To make a successful PHP expansion package, not just simply put the code in the folder, but there are a lot of factors to determine whether your extension is good. The contents of the following checklist will help refine your extension and get more attention in the PHP community.

corresponding element in the array based on the given subscriptCount gets the number of array elementsFirstobjectLastobjectContainsobject determines whether an object is in an arrayIndexofobject find the subscript of an object in an arrayIsequaltoarray to determine if an array is equalNsmutablearray variable ArrayInitwithcapacity Creating an arrayAddObject adding elements to the arrayInsertobject:atindex inserted at the subscript of the original arrayRemovelastobject Delete last ElementRemoveob

The VS installation location requires the path to be in English and is located under the program Files (x86) folder.Download Tool Vs_professional.exe:https://pan.baidu.com/s/1jhrjiia. NETCompilers, build tools, and run-time　　Code Tools　　Commissioning and testing　　Simulator　　Development activities　　Simulator　　Games and graphics　　Cloud, database, server　　　　SDKs, libraries, and frameworks　　　　. NET Environment Exception repair. NET Environment Checklist

it's okay to be a small dessert3http://sebug.net/paper/books/dive-into-python3/This is the first I read ~ I personally think that if you just want to see the grammar and so on, you can refer to the following to see ~ relatively easy to read.I personally think this is a general study material, learn grammar and other use.There is also to see you use the version of Python, which is also a careful talk about the 2 and 3 need to pay attention to the place.4Some books:"Python core Programming""Cute

) Xpath (basic positioning to understand, the contents of the axis can be left behind to learn) CSS (easy to understand) JavaScript (easy to understand) Firebug (Developer tools) use (this is often used, must be familiar with, can be in selenium learning gradually in depth) Basic knowledge of the network 3. Write your own

Ted GraHam mentions 39 checklist, and I think it's a pretty comprehensive summary. Are exceptions used to indicate error rather than status or error returning? Using exceptions to be just an error instead of using a state or an error code value Are all classes and public methods commented with. NET style comments?? Note that comments should discuss the "what" to public methods.? Discussion of "How" should is in blocks or in-line with the code in ques

poorly run applications outweigh the investment in human, program, and technology using reliable load testing methods. Therefore, I would like to provide the following list of load tests for your application, which will be a magic bullet to prevent your SQL Server performance tuning problem. Checklist: Load test--sql server performance Tuning Magic Wand Project Management Balance project management methodologies to ensure that projects follow a de

Areas of color and font test inclusion Users use Web products to obtain a large number of data information, the display of this information, including graphics and text two parts. In the process of rendering graphics and text to the user, colors and fonts play a very important role. Reasonable color and font settings ensure that users get the information they need in the most efficient and clear manner, and if the color and font settings are not properly set, users will spend more time getting

such a train of thought, when the server is normal, send an email notification, if not received the message that the server is not normal, but if there are many servers, how to know who did not send e-mail it? 2. deployed on a dedicated / Multi-monitor machine Server status monitoring, whether using a third-party tool or a custom script, is recommended to be deployed on a dedicated monitoring machine to monitor the target machine remotely. Because: if the server down or failure, may be the loc

SQL Optimization Checklist1. If the FROM statement contains more than one table, put the table with the few records in front2. When a where statement contains more than one condition, it will be brushed in front of many conditions3, avoid using SELECT *, because this will be to query all columns of data, which will consume more time4. On all fields used in the where and join parts of the SQL statement, the index should be added5, SQL is case insensitive language, but the specification is upperca

The MySQL batch checklist script moved the database on one server to another without knowing mysqlcheck. I want to see which table is damaged and do not want to execute it one by one on the command line, the following is my script #! /Bin/bashPass = "123456" # root's passwordData_path = "/home/mysql" # mysql's datadirCd $ data_pathFor f1 in $ (ls)DoIf [-d $ f1]; thenIf ["mysql "! = "$ F1"-a "test "! = "$ F1"]; then # inCd $ f1Echo "I'm in" $ f1For

open. print,edit , etc... 。Open The default generation procedure for this suffix file. Adding%1 after the program indicates that the program is enabled by default on double-click. Edit indicates when the file was edited and when print was printed. Summary File association Manual implementation steps:1.HKEY_CLASSES_ROOT the new subkey ". ABC", set the default value Abcfile2.hkey_classes_root new Subkey "Abcfile", this default value is not set.3. Under Abcfile, create a new subkey, DefaultIco

. (*) parse the entered HTML content, generate the parsing tree, and then extract the non-script part. 2. Use a script to delete related strings in the input HTML content * General Solution 1. (*) re-specify the charset attribute of Content-Type in the HTTP header of the response 2. To prevent Cookie information leakage, the Trace method should be disabled and the HttpOnly attribute should be set for all cookies. 6. Cross-Site Request Forgery (CSRF) 1. (*) All pages are accessed through POST. A

02-16t10:22:38 skipping table Xoxdb.tb_valuelog because on the master it would being checksummed in one chunk and on these re Plicas It has too many rows:149071 rows on boshiwan-hhjj-db-slave1.xox.com148468 rows on Login-serverThe current chunk size limit is 132858 rows (chunk size=66429 * Chunk size limit=2.0).Fault Description: With Pt_table_checksum to Xoxdb.tb_valuelog do synchronous check, master it would be checksummed in one chunk, that is, only checksum1 chunkPt_table_checksum restrictio

project construction process, the user side need to give support and cooperation? 　 13 Have you identified the time, place, participants, and agenda of the Project initiation meeting? Here and follow-up "project initiation" refers to the customer, the supervision of the "project outside the launch meeting". 14 Do you agree with the supervisor and the customer to participate in the project initiation meeting for the client project stakeholders (Inf

developed a risk management plan? 16 Have you completed project risk identification? 17 Have you developed a risk response strategy? 18 Is there a procurement plan in place? 19 Have you fully communicated the project master plan, Project schedule, and demand research plan within the project team? 20 Is the project Master plan, Project schedule, and demand research plan fully communicated with supervis

Basic articleThe practical significance behind the matrixProbability distributionUnconstrained optimization MethodLagrange Multiplier method and Kkt conditionRecommendedCorrelation testCollaborative Filtering recommendation algorithmClassificationNaive BayesianLrSvmClusteringKmeansDBScanCHAMELEONGmmDecision TreeID3C4.5AdaboostGbdtMining Association RulesAprioriFp-treeSequence MarkersHMM1HMM2MemmCrfTopic modelPcaLsapLSALdaNeural networkBpSofmCnnData Mining Learning

User experience, that is, user operation, is an important issue in the design of J2ME, the following is a number of designs to avoid or pay attention to some of the problems, for everyone in the design reference: 1. Quick Check list: The following are some of the requirements that you need to do in your program: L in the UI, the direction key style and soft key are consistent L Error and hint information does not contain technical terms L application with help function, help include application

variable names? Are their addresses in the memory the same? Function? ConstStudy time: 1 WKnowledge point checklistDo you often use const to indicate variables that cannot be changed?Do you often use const constants instead of Macros?In the following four cases, do you know what each means?Int I _value = 10;Const int * pvalue = I _valueInt const * pvalue = I _valueint * const pvalue = I _valueConst int * const pvalue = I _valueDo you know how to initialize const constants? SizeofStudy time: