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The company is currently doing products are based on Modbus-rtu communication protocol, has been writing touch screen applications, more or less understand the touch screen Modbus-rtu module is how to work;"Upper Machine"Using the Cserialport class

Issues to be solvedRecently, a Web project that is managing a server cluster needs to handle some extremely time-consuming operations, such as disk-formatted partitions. The first idea for this requirement is that, in order to make the RPC (Remote

by using arrays we can make a collection of many objects, and we can create a hash table with a name and a worthy index relationship, and when we manage an object with multiple properties, or even create a new object entirely, these methods are

The main contents of this section About Scala Why to learn Scala Scala language Preliminary 1. Introduction to ScalaThe Scala (Scala language abbreviation) language is a common programming language that runs on both the JVM and

Small series recently special like to study Taiji gossip, Qi door dun armour of the technique. Even the day and night to see the sky, found the South recently wind and rain, undercurrent surging. Pinch a count, the lake will become no longer calm!

Enthusiastic Netizen360 browser words, browser--Tools--options (non-Internet Options)--Advanced Settings--flash,Ppapi Flash is used by default (requires a browser restart)Npapi Flash is used by default (requires a browser restart)These two make

If some of the configuration files on the system have been modified on the server, and then the subsequent development adds some new configuration items,A code conflict occurs when this configuration file is published:Error:your local changes to the

Unit tests:Unit testing is a test of the correctness of a software's basic constituent unit (the smallest unit of software design), such as a function, a process (function,procedure), or a method of a class.Integration testing:Integration testing is

Write code that divides the linked list into two parts with the given value x as a datum, and all nodes that are less than X are ranked before nodes greater than or equal to X./* The first node of the incoming list, and the value as the base of the

Http://stock.jrj.com.cn/invest/20the devaluation of the renminbi is good or bad for the stock market.In the early August 11, the central bank reformed the renminbi price-quote mechanism, and the median price of the renminbi depreciated more than 1000

Recently began to learn the Dubbo framework, in the work of the previous business will be transferred.In the original Spring MVC framework implementation, there was a scenario that used a custom exception (custom exception inheritance

1. Software Development process: Project research, requirement analysis, software design, program coding, software testing, operation and maintenance.2. Software Testing Definition: The use of test tools according to test scenarios and processes to

Original link: http://unun.in/linux/156.htmlScheme:Adopt two Nginx server as front-end, provide static Web content, distribute Web request, one from, keepalived implement condition monitoring, ensure nginx normal service, that is, after the main

Citation: http://co63oc.blog.51cto.com/904636/328997The ImageMagick (IM) suite contains command line graphical tools that are a major free software; Linux, other Unix-like operating systems, proprietary operating systems such as Windows support IM

The following code can implement the ComboBox by default check the first item, in actual development we may use!// handle the problem of the ComboBox default check class= "Easyui-combobox" name= "User_type" data-options= " Valuefield: ' id ',

I forwarded the post here http://dong2008hong.blog.163.com/blog/static/4696882720140294039205/The original posts do not know the addressI've simply put it down here. Write useless, translated into ChineseA picture making 360 cubic (6 sides)

Title: Given an image represented by the n*n matrix, where each pixel is 4 bytes in size, write a method that rotates the image 90 degrees. Can you do this without taking up extra memory space?So, how do you exchange these four sides? One approach

DescriptionImagine you is standing inside a two-dimensional maze composed of square cells which may or may is filled with rock. You can move north, south, east or west one cell at a step. These moves is called walks.One of the empty cells contains a

A total of three parts, the first part SOLR conventional treatment, the second part of the targeted treatment, the former is more general, the latter has limitations. It is important to adjust the parameters and compare the performance according to

1. Internal tables Internal tables when the LOAD data is used, hive copies The data files from the local file system to hive 's /warehouse directory. Conversely, the data files on HDFs are clipped to the /warehouse directory. When Hive is in