java uses spire Remove the watermark from the word file generated by Doc (warning information in the header)

1. Demand Dynamically generate word documents through word templates and data in database tables. The word operation tool itself carries word to xml (save as xml directly). However, the requirements are clear. Only word templates can be used, and users are not allowed to manually transfer from word to xml and then upload. Freemark is ...

Added by ryan-uk on Sat, 15 Jan 2022 15:22:31 +0200

A solution to double linked list (0 basic view) (C language) data structure and algorithm

catalogue preface Lead two-way circular linked list 1. Concept 2. Effect display diagram 3. Interface implementation 3.01. The interface to be implemented in this article โ€‹3.02. Implementation of double linked list 3.03. Initialization of double linked list 3.04. Print linked list 3.05. Dynamically apply for a node 3.06. Head ins ...

Added by tbaink2000 on Sat, 15 Jan 2022 12:29:43 +0200

Let's learn about the MySQL explain implementation plan. Day 4 of MySQL Optimization Learning

Optimization of a query You should encounter this scenario. A self incrementing primary key is set in MySQL, but some data is subsequently deleted, resulting in discontinuous primary keys. You can use the following command to query those discontinuous primary keys. -- Writing method 1 select id from (select id from Table name order by id asc ...

Added by visitor on Sat, 15 Jan 2022 04:06:21 +0200

It's time to test the real technology! After reading, I will teach you to really understand Java annotation and reflection!

Annotation and reflection java.Annotation 1. What is annotation Annotation is from jdk5 New technologies introduced from 0Function of Annotation: It is not the procedure itself, which can be explained. (this is no different from comment s.)It can be read by other programs (such as compiler, etc.). Format of Annotation: Annotations ...

Added by automatix on Sat, 15 Jan 2022 03:51:24 +0200

[appendix 2Java object-oriented programming] detailed explanation of inventory keywords this, super and final

โค Write in front โค Blog home page: Hard working Naruto โค Series column: Java basic learning ๐Ÿ˜‹ โค Welcome, friends, praise ๐Ÿ‘ follow ๐Ÿ”Ž Collection ๐Ÿ” Learning together! โค If there are mistakes, please correct them! ๐ŸŒน ๐Ÿ”ฅ Series portal: [chapter 04 Java object-oriented programming (Part 2)] the killer technology of object-oriented programming [chapt ...

Added by thirteen13 on Sat, 15 Jan 2022 02:21:44 +0200

The fourth day of c + + Learning

1. Code area It has two characteristics: 1 is sharing, that is, we click on many of the same files, but only execute that piece of code and will not generate another piece of code. 2 is readable, that is, the code is only readable, but cannot be written, otherwise the data will be modified and the game gold coin will be changed 2. Global ...

Added by Jalz on Sat, 15 Jan 2022 01:45:50 +0200

[C + +] dynamic loading DLL

Warning! Using static appears in this article_ Cast and reinterpret_cast conversion between object pointer and function pointer is Microsoft extended syntax The syntax itself is undefined Please do not use it in multi system compatibility projects. It does not guarantee any compatibility, nor does it guarantee that it is legal in non MSVC compi ...

Added by shafiq2626 on Fri, 14 Jan 2022 23:59:53 +0200

Django brief development process

1. New Django project At the end of the Location is the Django project name, and select the virtual environment In More Setting, you can select the template language and enter the APP name in Application name. If you do not enter the APP name, the new project does not contain APP by default. After the project is completed, you can use the co ...

Added by dsartain on Fri, 14 Jan 2022 20:18:06 +0200

Do you understand Netty? Can't understand the source code? It doesn't exist. Take you to read the Netty source code

Prepare the following code in advance, start from the server construction, and deeply analyze the startup process of Netty server. public class NettyBasicServerExample { public void bind(int port){ //The server programming of netty should start with EventLoopGroup, // We want to create two eventloopgroups, // One ...

Added by jstarkweather on Fri, 14 Jan 2022 19:08:09 +0200

[C language (self-study record) from 0] one dimensional array

catalogue 1, One dimensional array: (1) Definition of one-dimensional array: 1. Format: 2. Note: (II) reference of one-dimensional array elements: 1. Format: 2. Note: (3) Initialization of one-dimensional array: 1. Format: 2. Note: (4) Example: 1. Compare the size of array elements and output the maximum value: 2. Array inversion ...

Added by khanuja.sunpreet on Fri, 14 Jan 2022 17:54:25 +0200