简单实现js选项卡切换效果

本文实例为大家分享了js选项卡切换效果的具体代码，供大家参考，具体内容如下

实现思路：

1、首先获取id元素。
2、for循环历遍按钮元素添加onclick事件。
3、排他思想，点击按钮时设置所有选项卡按钮样式为空，利用this关键字指定当前选项卡获得高亮样式。
4、下面的多个div内容块以此类推。
源代码：

<！DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>简单的选项卡切换（仿Hao123导航）</title></head><style> * {margin: 0;padding: 0; } .box {width: 278px;margin: 0 auto;margin-top: 100px;background-color: #F7F7F8;overflow: hidden; } .btn button {outline:none;color: #616161;font:14px/100% arial,"Hiragino Sans GB","Hiragino Sans GB W3",5b8b4f53;border: none;height: 34px;width: 51px;background-color: #F7F7F8;float: left;cursor: pointer; } .box .btn i {height: 16px;border-left: 1px solid #EAEAEA;margin-top: 9px;float: left;_font-size: 0px; } .box .btn button:hover {color: #0AA770; } .box .btn s {cursor: pointer;text-decoration: none;font:14px/34px arial,"Hiragino Sans GB","Hiragino Sans GB W3",5b8b4f53; } #box1 #btns .clickbtn {border-top: 1px solid #0AA770;color: #0AA770; } .bottom {display: none;position: absolute;width: 278px;height: 110px;color: #fff;text-align: center;font:14px/100% arial,"Hiragino Sans GB","Hiragino Sans GB W3",5b8b4f53; } .bottom a {color: #fff;position: relative;top: -20px;left: 0px;text-decoration: none; } .bottom a:hover {text-decoration: underline; }</style><script> window.onload = function（）{var btns = document.getElementById（"btns"）.getElementsByTagName（"button"）;var divs = document.getElementById（"bottomdivs"）.getElementsByTagName（"div"）;btns[0].className = "clickbtn"; for（var i = 0;i<btns.length;i++）{btns[i].index = i;btns[i].onclick = function（）{ //alert（this.index）; for（var j = 0;j<btns.length;j++）{btns[j].className = ""; } this.className = "clickbtn"; for（var b = 0;b<btns.length;b++）{divs[b].style.display = "none"; } divs[this.index].style.display = "block";}} }</script><body><div class="box" id="box1"> <div class="btn" id="btns"><button>推介</button><i></i><button>社会</button><i></i><button>娱乐</button><i></i><button>军事</button><i></i><button>体育</button><s>+</s> </div> <div id="bottomdivs"><div class="bottom" style="display: block"> <img src="images/01.jpg" alt=""> <h4><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >小伙直播时遭遇“闹鬼”事件 全过程被拍下</a></h4></div><div class="bottom"> <img src="images/02.jpg" alt=""> <h4><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >男子穿新郎装背充气娃娃游街</a></h4></div><div class="bottom"> <img src="images/03.jpg" alt=""> <h4><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >她满足所有人对才女的幻想</a></h4></div><div class="bottom"> <img src="images/04.jpg" alt=""> <h4><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >王毅回应中美是否会在南海发生冲突</a></h4></div><div class="bottom"> <img src="images/05.jpg" alt=""> <h4><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刘翔与娇妻秀恩爱 豪车曝光车牌太抢眼</a></h4></div> </div></div></body></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脚本之家。