Simple jquery drag and drop sorting effect implementation code_jquery

Steps:
1. Realize the effect of moving with the mouse;
2. Initialize an element and its coordinates;
3. Drag the last coordinates of the object, and calculate and judge with the coordinates of the element to determine what to insert The target element;
4. Use insertBefore method to insert in front of the target element
The specific code is as follows:

Copy code The code is as follows:

< body>

div1

div2

div3

div4

div5