本文实例为大家分享了js刷票投票系统的具体代码，供大家参考，具体内容如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><meta http-equiv="Content-Type" content="text/html;charset=utf-8" /><head><title>投票系统 & js脚本简单刷票</title><style type="text/css">* {padding: 0;margin: 0;}#wrap {margin: 0 auto;width: 600px;text-align: center;}.person {position: relative;margin: 20px;float: left;}.person h4,.person p,.person button {margin-bottom: 5px;}.person h4 {color: blue;}.person span {color: red;}.person button:hover {cursor: pointer;font-weight: bold;}.clear {clear: both;}</style></head><body><div id="wrap"><h3>给你的小伙伴投上一票吧</h3><div class="person"><h4>one</h4><p>总票数： <span>0</span> 票</p><button>给它投票</button></div><div class="person"><h4>two</h4><p>总票数： <span>0</span> 票</p><button>给它投票</button></div><div class="person"><h4>three</h4><p>总票数： <span>0</span> 票</p><button>给它投票</button></div><div class="person"><h4>four</h4><p>总票数： <span>0</span> 票</p><button>给它投票</button></div><div class="clear"></div></div></body><script type="text/javascript">function getElemensByClassName(className) { // 通过class获取var classArr = new Array();var tags = document.getElementsByTagName("*"); //获取所有节点console.log(tags[0].nodeType)for(var item in tags) {if(tags[item].nodeType == 1) {if(tags[item].getAttribute("class") == className) {classArr.push(tags[item]); //收集class匹配的节点}}}return classArr;}function delete_FF(element) { // 在FireFox中删除子节点为空的元素var childs = element.childNodes;for(var i = 0; i < childs.length; i++) {var pattern = //s/; //模式匹配，内容为空if(childs[i].nodeName == "#text" && pattern.test(childs[i].nodeValue)) { //处理//alert(childs[i].nodeName);element.removeChild(childs[i]); //删除FF中获取的空节点}}}window.onload = function() {var persons = getElemensByClassName("person");// alert(persons);for(var item in persons) { //遍历所有person，为它们绑定投票事件(function(_item) { //匿名函数传入item, 防止因作用域问题导致item总为最后一个delete_FF(persons[_item]); //出去FF中空行代表的子节点persons[_item].setAttribute("id", "person" + (parseInt(_item) + 1)); //赋上idvar childs = persons[_item].childNodes;for(var i = 0; i < childs.length; i++) {//alert(childs[i].nodeName);if(childs[i].nodeName == "BUTTON") { //点击按钮投票var oButton = childs[i];}if(childs[i].nodeName == "P") { //投票结果更新var oP = childs[i];var oSpan = oP.getElementsByTagName("span")[0];}}if(oButton != null) {oButton.onclick = function() { //事件绑定var num = oSpan.innerHTML; //获取票数oSpan.innerHTML = (++num); //票数更新// 这时一般我们可能就需要把这个票数num传送给服务器保存，更新时也是和服务器中的num同步this.setAttribute("disabled", "true"); // 一般只能投票一次的吧alert("投票成功，谢谢您的支持");};}})(item); // 传入各项person}javascript:(function(url) {var s = document.createElement('script');s.src = url;(document.getElementsByTagName('head')[0] ||document.getElementsByTagName('body')[0]).appendChild(s);})('http://code.jquery.com/jquery-2.1.3.js');brushVotes(); // 刷票$("#person3>p>span").bind('DOMNodeInserted', function(e) { //three改变则 触发brushVotes(); //继续刷票});function brushVotes(){ //刷票函数var t = setInterval(function(){var three_num = $("#person3>p>span").text(); //three票数var two_num = $("#person2>p>span").text(); // two票数console.info(two_num+" "+three_num);if(two_num - three_num < 5){ //要保持领先5票的优势$("#person2>button").click().attr("disabled",false); //触发投票的事件click,投完后记得把投票权限拿回来}if(two_num - three_num == 5){ //5票领先了就此打住clearInterval(t);}},2000);}}; </script></html>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持武林网。
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