Course Intermediate  11302

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Course Advanced  17615

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Advanced  11321

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

Course Introduction：This time I will bring you the verification code effect of drag verification using jQuery and vue. What are the precautions for using jQuery and vue to make the verification code effect of drag verification? The following is a practical case, let's take a look.

2018-03-14 comment 0  3109

Course Introduction：How to use Vue to implement verification code countdown effects. With the development of the Internet, verification codes have become one of the important means to protect user security. In order to improve user experience, we can use countdown effects to remind users of the remaining time to obtain the verification code. This article will introduce how to use Vue to implement the special effects of verification code countdown, and provide specific code examples. First, we need to create a Vue component to implement the verification code countdown function. In this component, we can define a countdown time variable to store the remaining seconds

2023-09-19 comment 0  775

Course Introduction：Best practices for generating CAPTCHA images with shadow effects using PHP and GD libraries Captcha is a common security measure used to determine if a user is a real user and not a bot. A common way to generate a CAPTCHA is to create an image containing random characters and ask the user to identify and enter those characters from the image. In order to increase the security of the verification code, we can add some visual effects, such as shadow effects, to the generated verification code image. This article will introduce the use of PHP and GD libraries to generate verification with shadow effects.

2023-07-12 comment 0  1232

Course Introduction：The content of this article is about how to use canvas to achieve the effect of verification code (with code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

2018-09-15 comment 0  3056

Course Introduction：This article mainly introduces to you in detail the countdown effect of WeChat applet to obtain verification code. It has certain reference value. Interested friends can refer to it. I hope it can help you.

2018-05-11 comment 0  2832