This Jquery plug-in is a very practical plug-in on the Internet, which is often used in projects. To make it easier for netizens to use, comics encapsulate this function into a common plug-in, the code is concise. The Code adds up to more than 40 lines, which is most suitable for users to learn and use. It mainly enables the display in the upper, lower, left, and right directions, with the operation that can be disabled, the plug-in has three parameter settings: 1. position: arrow pointing up (t), arrow pointing down (B), arrow pointing to left (l), arrow pointing to right (r) 2. value: the Small Arrow deviates from the left and top positions. 3. content: The displayed prompt content is easy to use. The procedure is as follows: 1. Introduce the Jquery core package 2. Introduce the plug-in Style File 3. Introduce the plug-in package 4. initialize the plug-in as follows:Online Demo and download