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python-the contents of the HTML file to retrieve a specific URL address string, save it as a list, and use each URL to download the picture and save it to the hard drive, the regular re Reference: http://blog.csdn.net/xwbk12/article/details/72734930 1, the target address: https://xianzhi.aliyun.com/forum/topic/1805/The contents of the following figure Remove the contents of the target back package like this: https://xianzhi.aliyun.com/forum/media/uplo

The so-called URL to go heavy (I have not found the corresponding English, url Filtering?), is the crawler will repeatedly crawl URL removal, avoid crawling the same page multiple times. Crawlers typically place the URL to be crawled in a queue, extracting the new URL from the crawled Web page, and before they are placed in the queue, first make sure that the new URLs have not been crawled and that they are no longer queued if they have been crawled before. the most intuitive approach to –hash t

Win8 System Spit Groove has been a lot of time, many people are accustomed to WIN8 system, although Microsoft recently launched WIN10 system but there are many people are not accustomed to, so many friends want to install the WIN8 system, the system of the home of a key reinstall is a very easy to use reinstall System Tools, Then the system home one-click Reload Tool How to re-install the system, the following small series to introduce the system home

MySQL service problems are often the most troublesome, often need to reload, and re-install many people unload dirty residual files, more can not be installed. You will encounter this problem in the next. Reload MySQL to the last step when you're stuck on the second line of the last stepThe solution is to delete the registry + DELETE data file after uninstalling1 uninstalling MySQLUninstall the best use of the installation package with uninstall progr

In the recent database across the machine room migration, due to hardware constraints, the need to scroll the database to a new computer room, first in the new room to build a new environment, the data migration past, and then the old engine room machine under the new engine room, re-configured for the next round of upgrade, reconfiguration process, there are the following issues:1: Because the room and IP have changed, you need to modify the server n

The problem occurs when you re-make the Caffe:sudo make runtest after reinstalling the video driver: Check Failed:error = = cudasuccess (30vs.0) unkown error ... 1. Uninstall the original Cuda sudo/usr/local/cuda-8.0/bin/uninstall-cuda-8.0.pl 2. Re-install Cuda 3. Problems occurred: /USR/BIN/LD:-lglut collect2 not found: Error:ld returned 1 exit status Workaround: http://blog.csdn.net/abclixu123/ar

Today, I'm trying to get the article views of a page through a Python crawler.But every time we get the same result.Originally, the amount of browsing was obtained by requesting a PHP page.The results of the request are as follows:$("#hits").html(750)750 of that is the number of views.So how do we get this 750?The code is as follows:re.split(’\W+’,soup.string)[-2# soup.string指的是如上的结果Python re module splits a string into a list

Input Description:Enter multiple lines, first enter the number of random integers, and then enter the corresponding number of integersOutput Description:Returns multiple rows, processed resultsInput Example 1:11102040326740208930040015Output Example 1:10152032406789300400Use HashSet and TreeSet respectively to achieveImport Java.util.arraylist;import java.util.collections;import Java.util.hashset;import Java.util.Iterator;import Java.util.scanner;public class M2 {public static void main (string[

chord length triangulation.? Optimal substructure properties: if Convex (n+1) edge typeP = {v0,v1,..., vn-1} The optimal triangulation T contains the triangle v0vkvn,1≤k≤n-1, then the right of T is three parts of the right and: the right of the triangle V0VKVN, the child polygon {v0,v1,..., VK} and {vk+1,vk+2,..., V The sum of the weights of N}. can assert that the triangulation of these two sub-polygons determined by T is also optimal. Because a smaller triangulation of {v0,v1,..., VK} or {

on the new project, right--->properties-->web project Settings-->context root, and change to the target name.The second step: after the completion of the above method, run the project, you will find the address bar is still the old project name, you need to change by the following settings:Enter the workspace of the project, open the. settting folder, open the Org.eclipse.wst.common.component file with Notepad, and change the three places of the file to the target name:Step three: Tomcat in the

important first LUN is about 10MB data destruction before, this 10MB data is very deadly, EXT3 root directory and the first block Group I node all in this former 10MB inside, then use data recovery commonly used software UFS Explorer and The recovery effect of R-studio is quite unsatisfactory, and may be the cause of large storage.In this case, we have to repair the corrupted EXT3 file system, write a program to do the EXT3 orphan directory lookup, found the root directory has 3 directories, th

Do not restart Emacs for the newly modified configuration to take effect, there are four functions can do: M-x Eval-last-sexp The current ELISP configuration before the cursor of the statement immediately take effect; M-x Eval-region The statements in the region selected in the current Elisp configuration to take effect immediately; M-x Eval-buffer The current SET statement in buffer to take effect immediately; M-x load-file ~/.emacs load the. emacs file so that the settings in it

ScopesScopes can be arbitrarily extended in spring2.0, you can customize scopes, and even you can redefine existing scopes (but you can't overwrite Singleton and prototype), The scope of spring is defined by the interface Org.springframework.beans.factory.config.Scope, as long as you implement the interface, and here's an example: we create a scope for a thread, The scope is valid in representing a thread, and the code is as follows:PublicclassMyScopeImplementsScope {PrivatefinalThreadLocalThre

(ID); System. out. println (Clazz); Beans.put (ID, O); for(Element propertyelement: (list" Property") ) {String name= Propertyelement.getattributevalue ("name");//UserdaoString Bean = Propertyelement.getattributevalue ("Bean");//uObject beanobject = beans.Get(bean);//Userdaoimpl InstanceString MethodName="Set"+ name.substring (0,1). toUpperCase () + name.substring (1); System. out. println ("Method name ="+methodName); Method m= O.getclass (). GetMethod (MethodName, Beanob

Userservice.javaPackage com.bjsxt.service;import Com.bjsxt.dao.userdao;import com.bjsxt.model.User; Public classUserService {PrivateUserdao Userdao; Public voidinit () {System. out. println ("Init"); } Public voidAdd (user user) {userdao.save (user); } PublicUserdao Getuserdao () {returnUserdao; } Public voidSetuserdao (Userdao Userdao) { This. Userdao =Userdao; } PublicUserService (Userdao Userdao) {super (); This. Userdao =Userdao; } Public voiddestroy () {Sys

UserdaoimplPackage com.bjsxt.dao.impl;import Com.bjsxt.dao.userdao;import com.bjsxt.model.User; Public classUserdaoimpl implements Userdao {Private intdaoid; Public intgetdaoid () {returndaoid; } Public voidSetdaoid (intdaoid) { This. daoid =daoid; } Public voidSave (User user) {//Hibernate//JDBC//XML//NetWorkSystem. out. println ("User saved!"); } @Override PublicString toString () {return "daoid="+daoid; }}Beans.xml"1.0"encoding="UTF-8"? >"Http://www.springframework.org/schema

Beans.xml"1.0"encoding="UTF-8"? >"Http://www.springframework.org/schema/beans"Xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation="Http://www.springframework.org/schema/beanshttp//www.springframework.org/schema/beans/spring-beans-2.5.xsd ">"Userdao" class="Com.bjsxt.dao.impl.UserDAOImpl"> "sets"> Set> 12Set> "lists"> 123"Maps"> "1"Value="1">"2"Value="2">"3"Value="3">"4"Value="4">"UserService" class="Com.bjsxt.service.UserService"> "Userdao"> refbean="Userdao"/> refbean="Userd

algorithm recursive call is reduced by at least 1/10. So, in the worst case, the time required for the algorithm is T (n) to satisfy the recursive T (n) ≤t (9N/10) +o (n). Thus, t (n) =o (n) can be used.The algorithm steps are as follows:will all the number of N to each 5 divided into a group of common groups, will be less than 5 of the group ignored, and then use any sort of algorithm, because only 5 numbers are sorted, so any one sort method can be. The elements in each group are sorted and t

variable with an extern statement in this function.(+) The ANSI C language sees the empty argument list as the old version of the C language, and no longer checks the parameter table. In ANSI C, if you want to declare an empty parameter table, you must display the declaration using the keyword void.(62) Careful use of definitions and declarations. A definition represents creating a variable or allocating a storage unit, whereas a declaration is a description of the nature of the variable and do

() { new UserServiceProxyFactory2 (); = factory.getuserserviceproxy (); Usproxy.save (); // To determine if a proxy object belongs to a proxied object type // the proxy object inherits the proxy object =>true // System.out.println (usproxy instanceof Userserviceimpl); // true }Results:Open the transaction! Save the user ! commit a transactionThird, the term in AOP:Joinpoint (connection point): All methods that