本文实例讲述了js实现的彩色方块飞舞奇幻效果。分享给大家供大家参考，具体如下：
运行效果截图如下：
具体代码如下：
<!DOCTYPE html> <html> <head> <title>demo</title> <style type="text/css"> body { margin:0; padding:0; } ul { list-style:none; margin:0; padding:0; } li { position:absolute; } #power { font-size:50px; line-height:100px; border:2px solid green; color:green; position:absolute; right:20px; bottom:20px; } </style> </head> <body> <ul id="canvas"></ul> </body> <script type="text/javascript"> var $ = function(id) { return document.getElementById(id); } var $_name = function(tag) { return document.getElementsByTagName(tag); } var color = function() { var _color = "rgb("; _color += Math.round(Math.random()*255); _color += ","; _color += Math.round(Math.random()*255); _color += ","; _color += Math.round(Math.random()*255); _color += ")"; return _color; } var createLi = function(attr) { var ele = document.createElement("li"); ele.style.backgroundColor = attr.bgColor || "black"; ele.style.left = attr.left + "px"; ele.style.top = attr.top + "px"; ele.style.width = ele.style.height = "15px"; ele.onmouseover = function() { var _self = this; var _rotate = 0; if(_self.interval) { clearInterval(_self.interval); _self.style.backgroundColor = _self._backgroundColorBK; } _self._backgroundColorBK = _self.style.backgroundColor; _self.style.backgroundColor = color(); _self.interval = setInterval(function() { _self.style.webkitTransform = "rotate("+_rotate+"deg)"; _rotate += 30; if(_rotate > 360) { clearInterval(_self.interval); _self.onmouseover = null; _self.style.backgroundColor = _self._backgroundColorBK; move(_self); return; } }, 100); } return ele; } var loca = { x: 1000, y: 0 }; var move = function(obj) { var _self = obj; var curX = parseInt(_self.style.left); var curY = parseInt(_self.style.top); var sX = loca.x - curX; var sY = loca.y - curY; var addX = sX/36; var addY = sY/36; var rotate = 0; var backgroundColorBK = _self.style.backgroundColor; _self.interval = setInterval(function() { _self.style.width = _self.style.height = (parseInt(_self.style.height) + 5) + "px"; _self.style.webkitTransform = "rotate("+rotate+"deg)"; curX += addX; curY += addY; _self.style.left = curX + "px"; _self.style.top = curY + "px"; _self.style.backgroundColor = color(); rotate += 10; if(rotate > 360) { _self.style.left = loca.x + "px"; _self.style.top = loca.y + "px"; clearInterval(_self.interval); _self.style.backgroundColor = backgroundColorBK; return; } }, 30); } var init = function() { var ul = $("canvas"); for(var i=50; i<90; i++) { for(var j=50; j<90; j++) { var color = "rgb("+i+","+j+","+Math.round(Math.random()*255)+")"; ul.appendChild(createLi({bgColor: color, left:(j-50)*16 ,top:(i-50)*16})); } } } var main = function() { init(); } main(); </script> </html>
希望本文所述对大家JavaScript程序设计有所帮助。