to use if

Reference: http://www.tfmatrix.com/2010/09/18/10-optimus-prime-quotes-useful-in-the-workplace/ Http://quotableoptimusprime.blogspot.com/p/quotes-about-op.html Optimus says a lot of cool things. most of it is very inspirational and motivates you to

Installing wireshark in centos is quite simple. Two commands are enough. Here, we mainly record the installation of writing usage: 1. yuminstallwireshark. Note that wireshark commands and graphical interfaces cannot be used. However, it provides

Summary of php optimization and efficient speed-up. 1. using return in a function to pass an array is more efficient than using global, for example: functionuserloginfo ($ usertemp) {$ detailexplode (|, $ usertemp); return $ detail ;} $ loginuserl 1.

Http://www.cnblogs.com/stevenhqq/archive/2013/04/18/3028350.htmlSolution for multi-project data migration, you need to write the full path name.Pm> enable-migrations-contexttypename "Huasuda.IntelligenceCommunity.Model.EntityContext"- ProjectName

Php to optimize the definition and code. The article summarizes the optimization and optimization code in php, which provides php programmers with a good idea. 1. if you can define a class method as static, try to define it as static, its speed will

This is a creation in Article, where the information may have evolved or changed. Yesterday wrote a go language memory dispenser design, recording the general structure of the memory allocator. Before introducing the core implementation of the

These small pieces are generated by the Add button below, if the form is OK, now it's trouble,Upload button is JS write plug-in, must be rendered to use, if it is added with append, buttons can not be used, there is no way to solve. Reply content:

This is a creation in Article, where the information may have evolved or changed. Consolidate two articles, Fixalloc and Mspan. The memory model is as follows: Fixalloc fixalloc is not a core component that assists in implementing an

Previously felt the shift operator is quite clear, perhaps the study of time long, and then a look, forget almost. Now refer to some of the online learning materials, the displacement operator collation, as a summary of knowledge points, but also a

The freewheeling diodes are both ends of the parallel coils, which generate inductive emf at both ends of the coil as it passes through the current. When the current disappears, its inductive EMF generates a reverse voltage to the original in the

When reading xml files with a large amount of data, although it supports XPath, it is easier to query, but you need to load them first, which wastes the memory and is relatively slow to use. If XMLReader is used, it does not need to be cached. When

Connect to MySQL using the Mysqli library, which supports both object-oriented and process-oriented approaches: 1. How to use object-oriented Establish a connection $db = new mysqli (' localhost ', ' root ', ' 123456 ', ' dbname '); Select the

1, in the function, when passing the array Using return is more efficient than using global Like what function Userloginfo ($usertemp) { $detail =explode ("|", $usertemp); return $detail; } $login =userloginfo ($USERDB); Than function Userloginfo ($

Today, I installed a zen-cart friendship link plug-in. the plug-in for Chinese websites is not easy to use. if you want to find it, go to the English website to download the latest version. It is better to use English. When importing a table, pay

In php, The is_file () function is used to determine whether a file exists. It is also very simple to use. If you need it, refer to it. In php, The is_file () function is used to determine whether a file exists. It is also very simple to use. If you

1. When passing an array in a functionUsing return is more efficient than using global, for exampleFunction userloginfo ($ usertemp ){$ Detail = explode ("|", $ usertemp );Return $ detail;}$ Login = userloginfo ($ userdb );RatioFunction userloginfo (

For the brothers who often use MySQL, the explain must not be unfamiliar. When you put a keyword in front of a SELECT statement Explain,mysql explains how it will handle select, providing information about how the table is federated and in what

Mysql Explain here to do a comprehensive collation of the data. I. Grammar Explain For example: Explain select * from T3 where id=3952602; Two. Explain output interpretation +----+-------------+-------+-------+-------------------+---------+----

Create an indexIndexing is especially important for queries as a major application. Most of the time the performance problem is simply because we forgot to add the index, or we didn't add a more efficient index. If you do not addIndex, then look for

datagrid|javascript| function JavaScript to implement the full selection of the DataGrid Client CheckBox column, and select Author: unknown Source: Network /**//* Paging Parameter description: Prefix: prefix; chkall: all marquee; Chksingle: Radio