how to use m

The M method is used to instantiate a base model class, the difference between the and D methodsIs: 1, do not need to customize the model class, reduce IO loading, good performance;2, after instantiation can only invoke the Basic model class (the

ThinkPHP connects to the Oracle database and thinkphporacle. ThinkPHP connects to the Oracle database, thinkphporacle I. operating environment construction system: 64-bit PHP Windows 7 flagship edition environment: wampserver2.2e-php5.4.3-httpd2.2.22

Abstract: PCA (principal component analysis) is a multivariate statistical method. PCA uses linear transformation to select a small number of important variables. It can often effectively obtain the most important elements and structures from overly

FTP:The default FTP port isFTP control 20FTP datta 21 Therefore, the default status can be list. If you want to improve the security of the FTP server, I think it is necessary to change the port and start to cure the problem. We recommend that you

1. Make menuconfig Version = 2Patchlevel = 6Sublevel = 26Extraversion =Name = rotary wombat # * Documentation *# To see a list of typical targets execute "make help"# More info can be located in./readme# Comments in this file are targeted only to

1. view the table space name and size. Select t. tablespace_name, round (sum (bytes/(1024*1024), 0) ts_size From dba_tablespaces t, dba_data_files d Where t. tablespace_name = d. tablespace_name Group by t. tablespace_name;　　 2. view the name and

The content of this article is basically from the http://www.cs.cmu.edu /~ Gilpin/tutorial/In this tutorial, I encountered "Is not a file or directory "error, so the original source code is modified.Source code: in order to allow readers to learn

Outline: Introduction Notes compared with the C Language Objective-c advanced features Development Tool introduction (cocoa toolkit features, framework, source file organization; XCode usage Introduction) Introduction: 1. objective-c is an extension

How many of the eight frequently-used cmd commands on the Internet do you know? I. pingIt is a command used to check whether the network is smooth or the network connection speed. As an administrator or hacker living on the network, the

Reprinted, do not know the source DSP Technology and Application -- Introduction to linear assembly language Introduction to linear assembly language• Assemble the code structure• Linear assembly language Introduction Assembly code structureLabel:

1. Purpose In order to ensure that all the programs compiled by the enterprise comply with the same standards and ensure consistency and uniformity, the program coding standards are established. 2. Scope Applicable to All enterprise software

1. Ping It is a command used to check whether the network is smooth or the network connection speed. As an administrator or hacker living on the network, the ping command is the first DOS command that must be mastered. The principle used is as

HIFI grade MP3? Is it possible? LameWhat is it? I will know after reading the full text, but before that, I would like to popularize the basic knowledge of MP3, or you may not understand it. I. MP3 family historyThe full name of MP3 is MPEG audio

E-BOM: a list of materials used by an ERP system, known as a manufacturing BOM (Manufacturing BOM, M-BOM), a cad-generated BOM (Engineering BOM, E-BOM ).E-BOM is usually limited to the drawings and parts of the list of materials appear in the

Less Optimization-> more optimization: O0 --> O1 --> O2 --> O3 -O0 indicates no optimization,-O1 indicates the default value, and-O3 indicates the highest optimization level. English explanation: '-O' '-O1' Optimize. Optimizing compilation takes

The cygwin and iPhone sdks are installed in windows. After a lot of code is downloaded, the result is a mix of C objective-C. Since the company used to play C ++ games, compilation has always been a problem. I checked a lot of information and

SVN access method The Subversion File Repository can be accessed (checked out and checked out) in many different ways-either through a local hard disk or through various network protocols. In any case, the location of the File Repository is always

Description Description Now we need to use M machines to process N parts, each of which has m processes, each of which is completed on different designated machines. Each process of each workpiece has a specified processing time. Each process of

Linux Kernel series-embedded compilation of asm _ volatile __and asm _ volatile _ in C Language _ In Embedded Assembly, the C language expression can be specified as the operand of the assembly instruction, and you do not have to worry about how to

Summary of SVN usage in Linux A recent project is inconvenient to Check local data and needs to be written and tested on the test server. So I studied how to use SVN in the Linux Command Line. First, you can see all the commands supported by svn in