Course Intermediate 11361
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 17663
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 11379
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.
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Course Introduction：When laying out pages, three-level linkage drop-down lists are often used. As a front-end developer, can you use JS to write three-level linkage codes for provinces and cities? This article will share with you how to use JS to achieve the three-level linkage effect of cities across the country. It has certain reference value and interested friends can refer to it.
2018-10-20 comment 0 9407
Course Introduction：In actual JavaScript project development, we often need three-level linkage, such as the selection of provinces and municipalities, the selection of three-level product classifications, etc. Today we will explain how JavaScript implements three-level linkage, and we will share the JavaScript source code with you! If you are not familiar with JavaScript to implement three-level linkage, you can take a look with us!
2018-03-10 comment 0 3890
Course Introduction：In front-end development, province and city linkage selection is a very basic and commonly used function. In order to improve user experience and improve data validity, developers need to implement this function through certain technical means. Among them, jquery is a very commonly used JavaScript library. This article will introduce how to use jquery to realize the linkage selection function of provinces and municipalities. 1. Demand analysis 1. Three drop-down boxes are needed, representing provinces, cities, and districts respectively; 2. After selecting a province, the city drop-down box will be dynamically loaded according to the province information, and the corresponding district drop-down box will also be loaded according to the province information.
2023-04-10 comment 0 1021
Course Introduction：How to realize multi-level linkage of data through PHP and UniApp Introduction: When developing web applications and mobile applications, we often encounter the need to achieve multi-level linkage, such as the selection of provinces and cities, the selection of product categories, etc. This article will introduce how to use PHP and UniApp to achieve multi-level linkage of data, and give corresponding code examples. 1. Data preparation Before starting, we first need to prepare the data required for multi-level linkage. Suppose we want to implement a selector for three-level linkage between provinces and municipalities, we need to prepare a
2023-07-04 comment 0 859
Course Introduction：I feel like I wrote less on the front end, just to practice my skills. I spent the afternoon writing this three-level linkage when I had nothing to do. It was also the first time I wrote this thing. As far as I know, city information can be stored in the database or written directly on the front end. To save trouble, I wrote it directly on the front end. Here is my code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/ht
2017-06-26 comment 0 1514
