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Algorithm BasicsRequirement: Generate a 4*4 2-d array and rotate it 90 degrees clockwise#!_*_coding:utf-8_*_array=[[col for Col in Range (5)] for row in range (5)] #初始化一个4-in-A-Z array #array=[[col for col in ' ABCDE '] for Row in range (5)]for row in array: #旋转前先看看数组长啥样 print (row) print ('-------------') for I,row in Enumerate (array): For index in range

Hibernate Study Notes -------- 4. query, hibernate -------- 4 1. Get/Load The Get method is instant retrieval, while the load method is delayed retrieval. They all query based on the primary key. In the 1 public void LazyTest () {2 // set lazy to false or true to check the SQL printing time. 3 Tb_User u = session. load (Tb_User.class, "1"); 4 // System. out. pr

)function Mail() { varPatten2=NewREGEXP (/^[0-9| a-z|_]{1,17}[@][0-9| a-z]{1,3}. (COM) $/)//e-mail Regular expression varPatten1 =NewREGEXP (/(\d{11}) |^ ((\d{7,8}) | ( \D{4}|\D{3})-(\d{7,8}) | (\d{4}|\d{3})-(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1}) | (\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1})) $/)//mobile phone number Regula

;=1 A + D 1 A + e + f = =2 B + c! =1 C + D = =1 (d + e = =0|| D = =1) {Console.WriteLine ("A:"+ A +"\NB:"+ B +"\NC:"+ C +"\nd:"+ D +"\ne:", B +"\NF:"+f); } } } } } } }2. There is a monkey and a bunch of peaches in the park, and the monkeys eat half of the peaches every day and throw away a bad one in half. By the seventh day, the monkey opened his eyes and found that ther

WCF Windows azure platform appfabric Creating a SOA case Creating the communication and integration case Creating the Business Process Hosting From the back coverDesign and Build state-of-the-art applications using WCF 4 Written by a team of Microsoft MVPs, this book arms you with a clear understanding of how the components of WCF 4 build on each other to provide a comprehensive frame

MySQL Extensibility architecture Practice N Library to 2N library expansion, 2 to 4, 4 to 8http://geek.csdn.net/news/detail/5207058 the same city Shenjianhttp://www.99cankao.com/algebra/modulo-calculator.phpModulo calculatorExtensibility is also a point that architects need to consider when doing database architecture design. First share a 58 of the city very handsome second-level data expansion program. Wh

47. Innovation workshop (algorithm ):Returns the longest descending subsequence of an array, for example, {9, 4, 3, 2, 5, 3, 2,4,3, 2} Idea: Dynamic Planning Calculates the longest descending subsequence of the sequence of the current number. Each time you look for the longest child sequence, scan the child sequence obtained before it, and the first number is smaller than the current number. For example, the first digit is 2, the maximum length is 1,

Online mall 4 -- query of the second-level category on the homepage; 4 -- second-level category 1. Create a table Create table 'categorysecond' ('csid' int (11) not null AUTO_INCREMENT, 'csname' varchar (255) default null, 'cid' int (11) default null, primary key ('csid '), KEY 'fk936fcaf21db1fd15' ('cid'), CONSTRAINT 'fk936fcaf21db1fd15 'foreign key ('cid') REFERENCES 'category' ('cid ')) ENGINE = InnoDB

IOS-C day 4 (upper) and ios-c day 4 1. Use of the while loop structure; 2. Random Number acquisition; 3. Use of do... while loop body; 4. Use of the for loop structure; 5. What is the difference between break and continue; 1. Use of the while loop structure // While Structure// While (conditional expression ){// Loop body;//}// Execution sequence: determines whe

Analysis of TCP/IP layer-4 protocol system and tcpip layer-4 Protocol TCP/IP layer-4 protocol system 1) The link layer, also known as the data link layer or network interface layer, usually includes the device driver in the operating system and the network interface card corresponding to the computer. They work together with the physical interface details of the

Chapter 4 scrapy crawls well-known Q A websites and Chapter 4 scrapy Crawlers In chapter 5, it seems that the practice project in Chapter 4 is nothing more than a simulated logon. The records are recorded in different sections and the knowledge points are directly added, which may be messy. 1. Common httpcode: 2. How to find the post parameter? First, find the

Open 4 threads to execute the following programs within 4 seconds; part of the code has been marked cannot be modified1 Public classLogtest {2 //the method inside can't move.3 Public Static voidParselog (String log) {4SYSTEM.OUT.PRINTLN (log + ":" + (System.currenttimemillis ()/1000));5 Try {6Thread.Sleep (1000);7}Catch(Exception e) {8 e.printstacktrace ();9 }Ten } One A

Follow the ghost Brother to learn PyQtPart.4, ghost Brother pyqtpart.4 We have been learning for the past two days since the Mid-Autumn Festival holiday. After studying the previous three articles, we can develop a simple tool for decompiling apk. To make it easier to use our own tools, we will process the search_file button in the third article. We will drag the file to the QLineEdit control to display the

Chapter 4 cycle structure, Chapter 4 Cycle Structure 1. Features of the loop structure: 1) not endless 2) It will continue only when certain conditions are met. It is called a "cyclic condition" 3) Exit the loop structure when the condition is not met 4) The loop structure is a series of identical or similar operations that are called "loop operations". 2. The lo

As the question, I am engaged in a little mixed, who can be careful to talk about: 1, composer psr-0 and psr-4 In the difference; 2, psr-0 specifications and psr-4 specifications of the difference; 3. composer and php-fig. For example, I am a bit confused. Who can tell me carefully: 1. The difference between psr-0 and psr-4 in composer; 2. Differences between p

ASP. net mvc 4 Practice Study Notes 4: controller (on ), I had a two-day weekend carnival. I had a lot of work tasks this week and did not study for a few days... I. Controller and action: From the preceding content, we can see that the controller action has two features: (1) public modification; (2) Returning ActionResult. However, the action does not have to return ActionResult. It can be void or another