js 等待动画效果,利用 spin.js 生成动画等待效果

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利用 js 生成一个界面友好的等待效果，使用 jquery 插件 spin.js，文章末尾有下载地址，下图是生成的效果截图，代码调用很简单。

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><style type="text/css">body {font-family: Helvetica, Arial, sans-serif; font-size: 12px;}#preview1 {float: left; position: relative; background-color: #000; color: black; width: 220px; height: 220px; margin: 0 5px; border-radius: 20px;}#preview2 {float: left; position: relative; background-color: #000; color: black; width: 220px; height: 220px; margin: 0 5px; border-radius: 20px;}</style><script src="jquery.min.js"></script><script src="spin.js"></script><script src="jquery.spin.js"></script><script type="text/javascript">// 对样式 #preview1 进行配置var opts1 ={lines : 12, // The number of lines to drawlength : 0, // The length of each linewidth : 11, // The line thicknessradius : 40, // The radius of the inner circlescale : 1.0, // Scales overall size of the spinnercorners : 0, // Roundness (0..1)color : '#efefef', // #rgb or #rrggbbopacity : 1 / 4, // Opacity of the linesrotate : 0, // Rotation offsetdirection : 1, // 1: clockwise, -1: counterclockwisespeed : 1, // Rounds per secondtrail : 100, // Afterglow percentagefps : 20, // Frames per second when using setTimeout()zIndex : 2e9, // Use a high z-index by defaultclassName : 'spinner', // CSS class to assign to the elementtop : '50%', // center verticallyleft : '50%', // center horizontallyshadow : false, // Whether to render a shadowhwaccel : false, // Whether to use hardware acceleration (might be buggy)position : 'absolute' // Element positioning};// 对样式 #preview2 进行配置var opts2 ={lines : 18, // The number of lines to drawlength : 0, // The length of each linewidth : 11, // The line thicknessradius : 40, // The radius of the inner circlescale : 1.0, // Scales overall size of the spinnercorners : 0, // Roundness (0..1)color : 'red', // #rgb or #rrggbbopacity : 1 / 4, // Opacity of the linesrotate : 0, // Rotation offsetdirection : 1, // 1: clockwise, -1: counterclockwisespeed : 1, // Rounds per secondtrail : 100, // Afterglow percentagefps : 20, // Frames per second when using setTimeout()zIndex : 2e9, // Use a high z-index by defaultclassName : 'spinner', // CSS class to assign to the elementtop : '50%', // center verticallyleft : '50%', // center horizontallyshadow : false, // Whether to render a shadowhwaccel : false, // Whether to use hardware acceleration (might be buggy)position : 'absolute' // Element positioning};</script><title>Insert title here</title></head><body><div id="preview1" class="preview"></div><div id="preview2" class="preview"></div></body><script type="text/javascript">$('#preview1').spin(opts1);$('#preview2').spin(opts2);</script></html>

插件下载地址
https://github.com/fgnass/spin.js/
http://spin.js.org/

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