Article Introduction：lol re-random: lol re-random PHP reverse sorting and random sorting code: array_reverse() function and shuffle() function introduction array_reverse() array array_reverse(array)array_reverse() function passes an array as the parameter, and returns one with the passed in Arrays with the same parameter values ​​but in reverse order. Copy the code The code is as follows:<?php $a = array(1,2,3,4,5); $a = array_reverse($a); for ($i=0; $

2016-07-29 comment 0  1540

Article Introduction：lol Re-randomize: lol Re-randomize the function code for randomly displaying pictures in php: For example, the blog display window copy code is as follows: <?php /******************** ****************************** * Filename: img.php * Author: freemouse * web: www.cnphp.info * email: freemouse1981@gmail .com * Date : 2010/12/27 * Usag

2016-07-29 comment 0  1128

Article Introduction：This article mainly introduces the countdown code of js anti-refresh for everyone. The implementation code of js countdown has certain reference value. Interested friends can refer to it.

2017-09-07 comment 0  1227

Article Introduction：A friend asked me on weibo if I could use JS and CSS to randomly generate a background image every time the page is refreshed. Of course it is possible. For specific methods, please see the implementation code below.

2016-05-16 comment 0  1142

Article Introduction：Today, a netizen wants his advertisement to be displayed randomly, and the content of the advertisement will be different every time he refreshes it. After referring to the source code website analysis, he can achieve it through the following code. I would like to share it with friends who need it.

2016-05-16 comment 0  1067

Article Introduction：With the development of network applications, data display is a very important part of front-end development. In the process of data display, we often need to refresh the page or refresh part of the data to keep it up to date. JQuery is a very popular Javascript library that provides many convenient methods to deal with front-end issues. So, how to refresh data in JQuery? JQuery provides some APIs to refresh data, and we can implement different refresh mechanisms through these APIs. 1. Use Location.rel

2023-05-25 comment 0  1423

Article Introduction：Below, the WordPress tutorial column will introduce to you how to randomly sort WordPress side widgets. I hope it will be helpful to friends in need! Sometimes you may want the sidebar widgets to be displayed in random order. You can add the following code to the end of the functions.php file of the current theme template.

2019-11-21 comment 0  2811

Article Introduction：With the advent of the artificial intelligence era, human production methods, lifestyles, and learning methods are undergoing major changes. How school education pays attention to and responds to these changing trends has become a new "question of the times." Recently, at the 82nd China Educational Equipment Exhibition, Ape Programming released the latest series of AR programming "Algorithm Basics", a full-stack programming learning and creation platform "Ape Programming Laboratory", etc., writing for artificial intelligence education with new products and new technologies. Give a more specific and clear answer. Cutting-edge new products in innovative programming education were unveiled at the exhibition. A class on "traditional craftsmanship" and "movable type printing" was particularly eye-catching. The staff used electronic equipment to scan the physical instruction card, and a vivid three-dimensional "printing workshop" immediately appeared on the big screen in front of them. In the scene, the robot is posing as before

2023-10-24 comment 0  818

Article Introduction：How to use PHP to develop a scheduled refresh function for web pages. With the development of the Internet, more and more websites need to update display data in real time. Refreshing the page in real time is a common requirement, which allows users to obtain the latest data without refreshing the entire page. This article will introduce how to use PHP to develop a scheduled refresh function for web pages and provide code examples. The simplest way to implement scheduled refresh using Meta tag is to use HTML Meta tag to refresh the page regularly. In HTML&lt;head&gt;

2023-08-17 comment 0  1821

Article Introduction：Use sort and sorted to modify and generate new variables in place. In the process of learning python, the quick sort function of the list is a required course for us. To introduce a method of quickly inserting an ordered sequence, let's first look at the differences and connections between the two sorting functions. First let's look at sort(), please look at the following code: importrandom#Randomly generate 10 integers within 100example_list=[random.randint(1,100)foriinrange(10)]#Sort themexample_list.sort()print( example_list)>>&gt

2023-05-09 comment 0  1340

Article Introduction：Whip Bullshi reported on October 23 that the application of virtual reality technology based on artificial intelligence is bringing new possibilities to education. On October 20, at the 82nd China Educational Equipment Exhibition, Ape Programming released the latest series of AR programming "Algorithm Basics" and demonstrated its full-stack programming learning and creation platform "Ape Programming Laboratory", allowing many exhibitors to experience Artificial intelligence is about to have a huge impact on future schools, education and teaching. Cutting-edge new products in innovative programming education were unveiled at the exhibition. A class on "traditional craftsmanship" and "movable type printing" was particularly eye-catching. The staff used electronic equipment to scan the physical instruction card, and a vivid three-dimensional "printing workshop" immediately appeared on the big screen in front of them. In the scene, the robot is following the steps of the previously placed instruction card to move the movable type out of order.

2023-10-23 comment 0  963

Article Introduction：How to use PHP to generate refreshable image verification codes. With the development of the Internet, in order to prevent malicious attacks and automatic machine operations, many websites use verification codes for user verification. One common type of verification code is the image verification code, which generates a picture containing random characters and requires the user to enter the correct characters before proceeding. This article will introduce how to use PHP to generate refreshable image verification codes and provide specific code examples. Step 1: Create a verification code image First, we need to create a verification code image

2023-09-13 comment 0  1139

Article Introduction：The significance and impact of PHP8: To explore the development direction of a new generation of programming languages, specific code examples are needed. In recent years, with the rapid development of information technology, programming languages ​​have also continued to evolve. As a language widely used in web development, PHP has ushered in a series of major changes in its recent updates. The release of PHP8 attracted widespread attention and had a profound impact on the development direction of programming languages. This article will introduce the significance and impact of PHP8, and demonstrate its new features and improvements through specific code examples. 1. PH

2024-01-26 comment 0  1397

Article Introduction：The satellite cloud image released by the Meteorological Observatory displays: The satellite cloud image released by the Meteorological Observatory displays the PHP code to obtain the pictures in the directory and display them randomly: At that time, I wanted to make a function that randomly changes the background image. If written in JavaScript, the program flow should be: Create an image array -> Randomly select one of the values ​​in the array -> Generate a style and write it into the body tag. However, using JS has the following disadvantages: 1. If the browser disables JS, it will be ineffective, and compatibility needs to be considered when writing code. 2. Maintenance is troublesome, as the positions of pictures are stored in arrays. So I proposed to use PHP to deal with it, but she and I were both half-experienced in PHP, and we couldn't figure out how to do it for a while. now

2016-07-29 comment 0  1625

Article Introduction：What should I do if I forget my password and cannot connect to my computer? Flashing the phone in engineering mode can solve this problem, but it will result in the loss of all files. Please consider carefully. The steps are as follows. The phone enters DFU mode, press and hold the home+power button at the same time... 2. Connect to itunes. It prompts that the device needs to restore the firmware. Restore the latest version of the firmware in DFU mode. When the phone is connected to the computer in any state, press and hold the home+power button at the same time. After the mobile phone device in the Universal Serial Bus controller in the computer device manager disappears, release the power button. Continue to hold down the home button and wait for a new unknown device to appear. The driver will be automatically installed and the DFU mode will be entered. Then open iTunes, I saw a prompt and found that a device was in recovery mode.

2024-01-16 comment 0  541

Article Introduction：With the rapid development of the Internet, network security issues have become increasingly important. In order to protect user privacy and data security, many websites will add verification code functions to user login or registration pages. This verification function is implemented in many programming languages. The following will introduce how PHP implements verification code refresh. 1. What is verification code? Verification code is a human-computer verification technology used to determine whether the user is a real user. Common verification codes include numbers, letters, and graphics. Among them, graphic verification code is a relatively common method, mainly by converting a randomly generated

2023-04-10 comment 0  1601

Article Introduction：With the continuous development of Internet technology, more and more websites need to implement JavaScript to call PHP files to achieve front-end and back-end data interaction. This article will introduce how to implement JS to call PHP files. 1. JS calls PHP files JS calls PHP files mainly through Ajax technology. Ajax (Asynchronous JavaScript And XML) is a development technology for web applications that uses asynchronous mechanisms to achieve asynchronous page refresh and improve user experience. Call P in JS

2023-04-19 comment 0  1661

Article Introduction：How to correctly upgrade the pip version requires specific code examples. As Python continues to grow, pip has become a common package management tool for Python. However, as time goes by, pip versions are constantly updated. This article will introduce how to correctly upgrade the pip version and provide specific code examples so that readers can quickly learn and master this skill. The following are the steps to correctly upgrade the pip version: Step 1: Open a terminal or command line tool. Before starting to upgrade pip, you first need to open a terminal or command line tool.

2024-01-27 comment 0  1301

Article Introduction：As smartphones continue to become more popular, people are becoming more and more dependent on mobile applications. As a lightweight application, WeChat applet has received more and more attention. Of course, the development of WeChat mini programs is also constantly innovative and developed. Among them, the ranking display implementation method developed by PHP has gradually been widely used. 1. Features of WeChat Mini Program Development WeChat Mini Program focuses on front-end technology and supports the development of multiple languages. The most commonly used technologies are JavaScript, CSS and HTML5. at the same time

2023-06-02 comment 0  683

Article Introduction：Answer: In C++, you can use the std::thread function library to create and use multiple threads to implement concurrent programming. Detailed description: Use std::thread to create a new thread and execute the specified code in the child thread. Use synchronization mechanisms such as mutexes and condition variables to ensure thread-safe access to shared data. A practical case shows parallel array sorting, in which multiple threads sort a subset of the array at the same time, improving efficiency.

2024-04-18 comment 0  1025