used crx

1, stitching stringsThe concatenation of strings is one of the most commonly used string operations, and in PHP there are three ways to stitch strings, namely dots. The delimiter {} operation, and the dot equals sign. = to operate, the dot equals can be used to decompose a long string into a few lines to define, this is more advantageous.2, replacing the stringIn the language of PHP, a function named Substr

Some tools used in software development In the software development processVCIn addition to compilers, we often use some auxiliary tools to improve work efficiency. The following describes some of the tools I have used, and the right is worth mentioning. Beyond compareThis is a tool for comparing files and folders. You can easily compare the differences between two folders or files. The diffe

About Poco: The TCPServer framework (the select model is used in windows) learning notes., pocotcpserver. Notes about Poco: TCPServer framework (the select model is used in windows ., pocotcpserver explains why I want to write this article. I have read the Poco: TCPServer box of A'er dream ship about Poco: TCPServer framework (the select model is used in windows)

Transferred from: http://www.dataguru.cn/article-10174-1.html Gradient descent algorithm is a very extensive optimization algorithm used in machine learning, and it is also the most commonly used optimization method in many machine learning algorithms. Almost every current advanced (State-of-the-art) machine Learning Library or deep learning library includes different variants of the gradient d

Shell Online Chinese manual abs,shell Chinese course, Shell Chinese course-submarine Eagle (tank) Blog http://manual.51yip.com/shell/ Http://mprc.pku.edu.cn/mentors/training/TrainingCourses/material/ShellProgramming.HTM Common sense of shell script programming Seven Types of files Regular expressions Character class description Shell's quotation mark type Different modes when setting a variable: Condition test Command execution order Script debugging Some commonly

Detailed description of special symbols used in LinuxOriginal: https://www.cnblogs.com/lidabo/p/4323979.html# pound (comments)#管理员 $ normal UserIn the script#!/bin/bash #!/bin/shThe pound sign also often appears at the beginning of a line, or after the complete instruction, which indicates that the symbol is followed by the annotation text and will not be executed.# This is comments.echo "a = $a" # a = 0Because of this feature, when you temporarily do

The following articles mainly describe the actual Oracle optimization query operations. We first assume that LARGE_TABLE is a large table), and the username column does not have relevant indexes, what statements are used in actual operations? The following describes the statement: SQL>SELECT*FROMLARGE_TABLEwhereUSERNAME=‘TEST'; QueryPlan SELECTSTATEMENTOptimizer=CHOOSE(Cost=1234Card=1Bytes=14) TABLEACCESSFULLLARGE_TABLE[:Q65001][ANALYZE

[CTRL] + [f] the screen moves one page down, which is equivalent to a [Page Down] button (commonly used)[CTRL] + [B] The screen moves one page up, which is equivalent to a [page up] button (commonly used)0 or function key [home] This is a number "0": Move to the top character of this line (commonly used)$ Or move the function key [end] to the last character of th

I. Common ACL rulesThe ACL of the Haproxy is used to make forwarding decisions based on the header of the request packet, the content of the response message, or other environmental state information, which greatly enhances its configuration flexibility. The configuration rule is usually divided into two steps, defining an ACL first, defining a test condition, and then executing a specific action when the condition is met, such as blocking the reque

0 reply content: This post is purely for common use. The following is only for the main purpose. Other uses are omitted due to space limitations. C: system underlying layer, driver, embedded underlying layer, and basic service program. C ++: Upper-layer service programs, application APIs, and large 3D games. Java: server applications and client applications. JS: A program running in a browser. PHP: a program used by the Web server to generate Web pag

Original: http://www.cnblogs.com/lvdabao/p/3379659.htmlI. Things and expressions that can be used in a templateThere are four things that you can use in a template, including the following: Directive (Directive). NG provides or customizes tags and attributes to enhance HTML expressiveness. Tag (markup). That is, the double curly braces {{}}, which bind the data one-way to the HTML. Filters (filter).

Document directory Unsigned integer Compression Algorithm Unsigned integer decompression algorithm Algorithm for compressing signed integers Algorithm for extracting signed integers ILASM/ILDASM Mono Cecil CCI Metadata Other implementations not yet studied Expert. NET 2.0 IL Explorer ECMA-335-Common Language Infrastructure (CLI) 4th Edition Compressed integer used in. NET/CLI metadata Address: http://www.cnblogs.com/AndersLiu/archive/2010/

Function. apply () parameter array is used to improve JavaScript program performance. javascriptapply Let's talk about Function. apply () in improving program performance. Let's start with the Math. max () function. Math. max can be followed by any parameter and return the maximum value among all parameters. For example alert(Math.max(5,8)) //8 alert(Math.max(5,7,9,3,1,6)) //9 However, in many cases, we need to find the largest element in the a

(L2CAP) is used to control multi-user connections and process packet segmentation and combination. This is a common choice for applications.· Service Discovery Protocol the Service Discovery Protocol (SDP) is used to locate and describe the services provided or available by bluetooth devices. The application is mainly used when it is set to communicate with anot

SPI busThe serial peripheral interface bus is a three-line serial bus developed by Motorola for data transmission using three lines, which are the sck clock pins, SI data input pin and so data output pin. In addition, the CS chip selection pin can be used to select chips on the same bus, SPI bus has been widely used in EEPROM, single chip microcomputer and various devices. The 25xx series chips in commonly