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PHP study notes (4): php study notes. PHP learning notes (4): some functions in the Wordpress framework of php learning notes: wp_get_nav_menu ($ default): obtain the menu according to the condition $ default, by default, all menus are obtained, including $ d PHP learning notes (4) and php learning notes. Some functions in the Wordpress framework: Wp_get_nav_menu ($ default ):Obtain menus based on the cond

Jq Study Notes (2) and jq Study Notes Jq notes-dom-MOOC learning notes 1. jQuery node creation and attribute ProcessingCreate element nodes:1. $ ("Created as this node:1. $ ("Create as attribute node:1. $ ("2. $ (" 2. Insert append () and appendTo () in the DOM () ① Append () to add content to each Matching Element② AppendTo (): append all matched elements to anotherA simple summary is:The. append () and.

Java study notes 23 --- internal class local internal class can only access final local variables, study notes 23 --- A local internal class is a class defined in the method body or code block. It has been briefly introduced in note 19. Today we will discuss why local internal classes can only access local variables that are constants. Author: blog garden-Chan Please respect the author's Labor achievements

Java Study Notes-11. type identification during runtime, Study Notes-11 1. The getClasses () method of the Class Object obtains all public internal classes in the Class and internal classes inherited from the parent Class and parent interface. The getinterfaces () method returns all interfaces inherited by the class. Import javax. print. attribute. standard. printerInfo; interface HasBatteries {} interface

MySql Study Notes (3) and mysql Study Notes Mysql management tool: Common MySql database management tools include ): 1. SQLyog 2. navicat for mysql 3. DbVisualizer 4. Navicat Premium Then, their installation packages can be downloaded on my network disk: Link: http://pan.baidu.com/s/1mitAzTQ password: 4p1t Mysql is connected through a management tool: 1. 1. SQLyog 2. navica

Mysql Study Notes 001 and mysql Study Notes 001Mysql is case-insensitive and requires the server to tell him the version number. Select version (); Mysql> select version ();+ ----------- +| VERSION () |+ ----------- +| 5.7.18 |+ ----------- +1 row in set (0.09 sec) Mysql>Current Time SELECT CURRENT_TIME (); Mysql> SELECT CURRENT_TIME ();+ ---------------- +| CURRENT_TIME () |+ ---------------- +| 13:57:15 |

Java Study Notes 20 --- adding internal classes to member Internal classes (1), Study Notes 20 --- In the previous article, note 19 briefly introduced the internal class, local internal class, and anonymous internal class of the member, and added some content to the internal class of the member. There are mainly the following six points: 1. The member's internal class cannot have static members, except when

Java Study Notes 17 (Object-Oriented 10: Comprehensive cases) and java Study Notes At the end of the object-oriented topic Combined with the previous articles, I used many Object-Oriented Knowledge and made a simple case: Hotel case: Package hotel;/** hotel staff class * Common Features of employees: name, Employee id, Working Method */public class Employee {private String name; private String id; // note

Java Study Notes 11 (Object-Oriented 4: Polymorphism) and java Study Notes Polymorphism: Example: Describes multiple forms of a thing. For example, the Student class inherits the Person class. A Student object is both Student and Person. Polymorphism is: the parent class reference variable can point to the subclass object Note: The Sub-parent relationship or the class implementation interface relationship m

SpringCloud Study Notes (2) -- Config, springcloud Study Notes Refer to Spring Cloud official documentation 4th ~ Chapter 10 The configurations in all examples in the official website are on git. Https://github.com/spring-cloud-samples/config-repo Part II. Spring Cloud Config4. Quick Start The default policy for finding the location of a property resource is to clone a git repository and use it to initializ

Java Study Notes 3 (array), java Study Notes 3 Array 1. array definition: First: Public class ArrayDemo {Public static void main (String [] args ){// Define an arrayInt [] arr = new int [3];// The default value of the element in the array is 0.System. out. println (arr [0]);System. out. println (arr. length );}} Here the length is the length of the array. Method 2: Public class ArrayDemo {Public static v

Java study notes 35 (exception) and java study notes 35 An exception occurs when the code is running. Java encapsulates multiple exceptions into multiple classes. When a program encounters a problem, it creates an exception class object and throws related information. Exception system: The Throwable class is the parent class of all errors or exceptions in Java. The Error class, a subclass of Throwable, is

Spring framework study notes 7: Transaction Management and cases, spring Study Notes Spring provides a mechanism for managing transactions in projects. I have written a simple introduction to the transaction essay: http://www.cnblogs.com/xuyiqing/p/8430214.html There is another Hibernate Transaction Management: http://www.cnblogs.com/xuyiqing/p/8449167.html Make a comparison. Spring manages the unique attr

Spring framework study notes 3: Use annotations instead of configuration files, spring Study Notes 1. Import context constraint: spring-context-4.2.xsd 2. Open the xml configuration file in design mode, right-click edit namespaces, and click add to add After completion, it should be like this: In the configuration file, write as follows: Use annotations in the class as follows: Package bean; import

Hibernate framework study notes 12: Query Optimization, hibernate Study Notes Class-level query optimization: Create an object class: Package domain; import java. util. hashSet; import java. util. set; // Customer entity public class Customer {private Long cust_id; private String cust_name; private String cust_source; private String cust_industry; private String cust_level; private String cust_linkman; priv

Hibernate framework Study Notes 6: transactions, hibernate Study Notes MySQL transactions and JDBC transaction operations: For details, see this article: More detailed Http://www.cnblogs.com/xuyiqing/p/8430214.html How to configure the isolation level in hibernate: In the core configuration file: Here it is binary, which is converted to decimal 1, 2, 4, 8 Manage transactions in a project: Before learnin

A Preliminary Study on the factory model of Android development and a preliminary study on the android Factory Factory is a common mode. I think it is also a very easy-to-understand mode. Let's give a simple example. We often take tests when we were young, what you are most afraid of each time is the score of your parents asking for the exam. Our mood is different for different scores. Then we will write a

First knowledge of Java -- (Java study note 1), first knowledge of java Study NotesCore advantages of JAVA: cross-platform-JVM (JAVA Virtual Machine) Implementation of JVM: a standard identifier of the JAVA Virtual Machine: only the following line, dollar sign ($), consisting of letters and numbers, cannot begin with a number float :( occupies 4 bytes of storage space) floating point does not accurately rep

Control Execution Process -- (Java study note 3), java Study NotesThe most basic form of if-else control program flow Format:If (boolean-expresion ){Statement}OrIf (boolean-expresion ){Statement} Else {Statement}Example: public static int testIf(int testVal,int target){ int result = 0; if(testVal > target){ result+=1; }else if(testValIteration statement: while, do-while, and for are used to control the

Python Study Notes 11 and python Study NotesNetwork ProgrammingConcepts required for Network Programming The network architecture is a kind of adhesive that uses different devices and network systems connected with different media to achieve interoperability in different application environments and meet various business needs. The network architecture is a hierarchical method to solve the problem of mutual