Course Elementary  19695

Course Introduction：As a full-stack Web developer, front-end development skills must be mastered. The teaching content at this stage covers: basic content such as HTML5, CSS3, JavaScript, etc., as well as common framework knowledge such as jQuery, Bootstrap, LayerUI, etc., and then cooperates with practical development , allowing you to quickly get started with front-end development work

Course Intermediate  3446

Course Introduction：This set of courses is based on the design concept and data structure of MySQL index, index usage scenarios, index classification, index usage scenarios, index performance analysis, query optimization, slow query of MySQL index, etc. It mainly describes the solution of MySQL index optimization. It is very suitable for students who have basic knowledge of MySQL or have certain work experience. The course explains how to solve the problem of slow large-volume queries, how to write an efficient SQL, how to optimize query statements, what is the implementation principle of indexes, how to optimize indexes... and many other difficulties and interview points in SQL index optimization.

Course Intermediate  5453

Course Introduction：MySQL is one of the most popular relational databases and is widely used in various fields. This course mainly explains the common objects in MySQL, and explains the optimization strategies in detail, and uses cases to give us an in-depth understanding of SQL optimization strategies. After studying this course, we can independently complete various SQL optimizations and improve the performance of the system.

Course Elementary  12742

Course Introduction："AJAX Cross-Domain Solution: JSONP Video Tutorial" The core of ajax is the JavaScript object XmlHttpRequest. This object was first introduced in Internet Explorer 5 and is a technology that supports asynchronous requests. This video introduces the ajax cross-domain solution.

Course Intermediate  8061

Course Introduction：Caching is a core component of current enterprise-level applications. Today's mainstream e-commerce, life services, live broadcast and other fields are inseparable from the use of cache. As the current mainstream caching technology, Redis has become the first choice for Internet companies. The cache structure design based on redis cluster currently accounts for half of the market in the same field.

Course Introduction：mkdir("testing")问题求解

2016-06-23 comment 0  750

Course Introduction：ThinkPHP问题求解

2016-06-23 comment 0  1050

Course Introduction：【解题】PHP多维数组排序问题

2016-06-23 comment 0  958

Course Introduction：Problem Solving: Solving the problem of php chr ord intercepting garbled characters in Chinese. Solution: Copy the code as follows: <?php $lenth = 19; $str = "How to display only the first few words of a long news title, and then use... ...instead of "; echo strlen($str)<=$lenth ? $str : (substr($str,0,$lenth).chr(0)."...."); ?> Copy The code is as follows: <? /* @ Another method, use the ord() function: @ Applicable

2016-07-29 comment 0  1325

Course Introduction：求解一道题

2016-06-23 comment 0  774