情人节之礼项链

情人节马上要到了，为情人节奉献一份礼物哈。。。
一定要支持CSS3渲染的浏览器

第一个项链
实现原理将img的src属性设为同一张图片
效果图：

<!DOCTYPE html> <html> <head> <title>项链---www.cnblogs.com/kuikui</title> <style type="text/css"> *{margin: 0px;padding: 0px;} .cont{ 1100px;overflow: hidden;margin: 0 auto;} .div1, .div7{ 50px;height: 50px;border: 1px solid red;float: left;overflow: hidden;border-radius: 50px;} .div1 img, .div7 img{ 50px;height: 50px;} .div2, .div6{ 100px;height: 100px;border: 1px solid red;float: left;overflow: hidden;border-radius: 100px;} .div2 img, .div6 img{ 100px;height: 100px;} .div3, .div5{ 200px;height: 200px;border: 1px solid red;float: left;overflow: hidden;border-radius: 200px;} .div3 img, .div5 img{ 200px;height: 200px;} .div4{ 300px;height: 300px;border: 1px solid red;float: left;overflow: hidden;border-radius: 300px;} .div4 img{ 300px;height: 300px;} </style> <script type="text/javascript"> window.onload = function () { var link = document.getElementById("link"); linkDiv = link.getElementsByTagName("div"); var i = 1; setInterval(function () { if (i == 7) { i = 1; for (var j = 0; j < 7; j++) { linkDiv[j].getElementsByTagName("img")[0].src = "http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + i + ".jpg"; } i++; } else { for (var j = 0; j < 7; j++) { linkDiv[j].getElementsByTagName("img")[0].src = "http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + i + ".jpg"; } i++; } }, 1000); } </script> </head> <body> <div id="link" class="cont"> <div class="div1"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test1.jpg" /> </div> <div class="div2"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test2.jpg" /> </div> <div class="div3"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test3.jpg" /> </div> <div class="div4"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test4.jpg" /> </div> <div class="div5"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test5.jpg" /> </div> <div class="div6"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test6.jpg" /> </div> <div class="div7"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test7.jpg" /> </div> </div> </body> </html>

第二个项链
实现原理将img的src属性循环设置图片
效果图：

<!DOCTYPE html> <html> <head> <title>项链---www.cnblogs.com/kuikui</title> <style type="text/css"> *{margin: 0px;padding: 0px;} .cont{ 1100px;overflow: hidden;margin: 0 auto;} .div1, .div7{ 50px;height: 50px;border: 1px solid red;float: left;overflow: hidden;border-radius: 50px;} .div1 img, .div7 img{ 50px;height: 50px;} .div2, .div6{ 100px;height: 100px;border: 1px solid red;float: left;overflow: hidden;border-radius: 100px;} .div2 img, .div6 img{ 100px;height: 100px;} .div3, .div5{ 200px;height: 200px;border: 1px solid red;float: left;overflow: hidden;border-radius: 200px;} .div3 img, .div5 img{ 200px;height: 200px;} .div4{ 300px;height: 300px;border: 1px solid red;float: left;overflow: hidden;border-radius: 300px;} .div4 img{ 300px;height: 300px;} </style> <script type="text/javascript"> window.onload = function () { var link = document.getElementById("link"); linkDiv = link.getElementsByTagName("div"); var i = 1; setInterval(function () { if (i == 7) { i = 1; for (var j = 0; j < 7; j++) { linkDiv[j].getElementsByTagName("img")[0].src = "http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + Math.abs(j - i + 2) + ".jpg"; } i++; } else { for (var j = 0; j < 7; j++) { if (i <= j + 1) { linkDiv[j].getElementsByTagName("img")[0].src = "http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + Math.abs(j - i + 2) + ".jpg"; } else { linkDiv[j].getElementsByTagName("img")[0].src = "http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + Math.abs(7 + j - i + 2) + ".jpg"; } } i++; } }, 1000); } </script> </head> <body> <div id="link" class="cont"> <div class="div1"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test1.jpg" /> </div> <div class="div2"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test2.jpg" /> </div> <div class="div3"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test3.jpg" /> </div> <div class="div4"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test4.jpg" /> </div> <div class="div5"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test5.jpg" /> </div> <div class="div6"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test6.jpg" /> </div> <div class="div7"> <img alt="" src="http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test7.jpg" /> </div> </div> </body> </html>

第三个项链
实现原理将div按指定轨迹移动
效果图：

<!DOCTYPE html> <html> <head> <title>项链---www.cnblogs.com/kuikui</title> <style type="text/css"> .div1{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test1.jpg) center center;position: absolute;} .div2{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test2.jpg) center center;position: absolute;} .div3{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test3.jpg) center center;position: absolute;} .div4{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test4.jpg) center center;position: absolute;} .div5{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test5.jpg) center center;position: absolute;} .div6{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test6.jpg) center center;position: absolute;} .div7{ 100px;height: 100px;border: 1px solid red;overflow: hidden;border-radius: 300px;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test7.jpg) center center;position: absolute;} .love{ 300px;height: 300px;border: 1px solid red;overflow: hidden;border-radius: 50px 300px 300px 300px ;background: url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test1.jpg) center center;position: absolute;} </style> <script type="text/javascript"> var doc = [document.documentElement.clientWidth, document.documentElement.clientHeiht]; function R(obj, j, r) { obj = document.getElementById(obj); var tmp = j; if (tmp > 90) tmp = Math.abs(tmp - 180); var objW = obj.clientWidth; var objH = obj.clientHeight; setInterval(function () { if (j == 180) { j = 0; obj.style.left = doc[0] / 2 - obj.clientWidth / 2 + r * Math.cos(j * 2 * Math.PI / 360) + "px"; obj.style.top = r * Math.sin(j * 2 * Math.PI / 360) + "px"; j++; } else { if (j <= 90) { obj.style.left = doc[0] / 2 - obj.clientWidth / 2 + r * Math.cos(j * 2 * Math.PI / 360) + "px"; obj.style.top = r * Math.sin(j * 2 * Math.PI / 360) + "px"; } else if (j > 90 && j < 180) { obj.style.left = doc[0] / 2 - obj.clientWidth / 2 + r * Math.cos(j * 2 * Math.PI / 360) + "px"; obj.style.top = r * Math.sin(j * 2 * Math.PI / 360) + "px"; } j++; } }, 60); } window.onload = function () { R("t1", 15, 300); R("t2", 40, 300); R("t3", 65, 300); R("t4", 90, 300); R("t5", 115, 300); R("t6", 140, 300); R("t7", 165, 300); var love = document.getElementById("love"); love.style.left = document.documentElement.clientWidth / 2 - love.clientWidth / 2 + "px"; var i = 1; setInterval(function () { if (i == 7) { i = 1; love.style.background = "url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + i + ".jpg)"; i++; } else { love.style.background = "url(http://images.cnblogs.com/cnblogs_com/kuikui/354173/t_test" + i + ".jpg)"; i++; } }, 1000); } </script> </head> <body> <div id="love" class="love"> </div> <div id="t1" class="div1"> </div> <div id="t2" class="div2"> </div> <div id="t3" class="div3"> </div> <div id="t4" class="div4"> </div> <div id="t5" class="div5"> </div> <div id="t6" class="div6"> </div> <div id="t7" class="div7"> </div> </body> </html>

相关阅读:
uva 1362(区间dp+计数)
uva 11174(排列组合+搜索)
简单递推系列 uva习题
基本计数方法系列 uva习题
Codeforces Round #209 (Div. 2) Problem A Table（找规律）
CodeChef November Challenge 2013 解题报告
2012 chengdu现场赛 Browsing History HDU4464(简单字符串)
CodeChef TechFest 2013 Cool Numbers(搜索)
CodeChef Inscription 2013 Wonderland jewellery（简单题）
页面滚动marquee标签

原文地址：https://www.cnblogs.com/kuikui/p/2348708.html