<!doctype html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta content="width=device-width, initial-scale=1, user-scalable=no"> <meta content="EditPlus®"> <meta content=""> <meta content=""> <meta content=""> <title> jQuery响应鼠标移动</title> <style> *{margin:0;padding:0;} ul,li{list-style:none;} div{font-family:"Microsoft YaHei";} html,body{width:100%; height:100%; background:#f2f2f2;} ul{margin-left:50px;} ul li{float:left;} ul li .outer{width:300px; height:250px;} ul li .outer .inner{width:300px; height:250px; background:rgba(0, 0, 0, .3);} </style> <script src="https://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> </head> <body> <ul> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/09.jpg" /> <div> 我是图片1 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/010.jpg" /> <div> 我是图片2 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/011.jpg" /> <div> 我是图片3 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/012.jpg" /> <div> 我是图片4 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/013.jpg" /> <div> 我是图片5 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/014.jpg" /> <div> 我是图片6 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/015.jpg" /> <div> 我是图片7 </div> </div> </li> <li> <div> <img src="https://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/016.jpg" /> <div> 我是图片8 </div> </div> </li> </ul> <script> (function($){ $.fn.extend({ show : function(div){ var w = this.width(), h = this.height(), xpos = w/2, ypos = h/2, eventType = "", direct = ""; this.css({"overflow" : "hidden", "position" : "relative"}); div.css({"position" : "absolute", "top" : this.width()}); this.on("mouseenter mouseleave", function(e){ var oe = e || event; var x = oe.offsetX; var y = oe.offsetY; var angle = Math.atan((x - xpos)/(y - ypos)) * 180 / Math.PI; if(angle > -45 && angle < 45 && y > ypos){ direct = "down"; } if(angle > -45 && angle < 45 && y < ypos){ direct = "up"; } if(((angle > -90 && angle <-45) || (angle >45 && angle <90)) && x > xpos){ direct = "right"; } if(((angle > -90 && angle <-45) || (angle >45 && angle <90)) && x < xpos){ direct = "left"; } move(e.type, direct) }); function move(eventType, direct){ if(eventType == "mouseenter"){ switch(direct){ case "down": div.css({"left": "0px", "top": h}).stop(true,true).animate({"top": "0px"}, "fast"); break; case "up": div.css({"left": "0px", "top": -h}).stop(true,true).animate({"top": "0px"}, "fast"); break; case "right": div.css({"left": w, "top": "0px"}).stop(true,true).animate({"left": "0px"}, "fast"); break; case "left": div.css({"left": -w, "top": "0px"}).stop(true,true).animate({"left": "0px"}, "fast"); break; } }else{ switch(direct){ case "down": div.stop(true,true).animate({"top": h}, "fast"); break; case "up": div.stop(true,true).animate({"top": -h}, "fast"); break; case "right": div.stop(true,true).animate({"left": w}, "fast"); break; case "left": div.stop(true,true).animate({"left": -w}, "fast"); break; } } } } }); })(jQuery) $(".outer").each(function(i){ $(this).show($(".inner").eq(i)); }); </script> </body> </html>
其中控制响应鼠标方向的JS代码如下：
/* *使用说明： * $(".a").show($(".b")) * a是展示层，b是遮罩层 * b在a的内部 */ $(".outer").each(function(i){ $(this).show($(".inner").eq(i)); });
这里使用在线HTML/CSS/JavaScript代码运行工具：运行代码，可得到如下效果：
完整实例代码点击此处本站下载。
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