本文實(shí)例為大家分享了jquery焦點(diǎn)圖的實(shí)現(xiàn)代碼,供大家參考,具體內(nèi)容如下
<!doctype html><html lang="en"><head> <meta charset="UTF-8"> <title>焦點(diǎn)圖</title> <style type="text/css">  img{position: relative;}  ul{list-style: none;width: 545px;position: absolute;top: 280px;left: 170px;}  li{float: left;width: 20px;line-height: 18px;border: 1px solid #ccc;background-color:#494a93;}  a:hover{background-color: red;}  a{display: block;width: 20px;line-height: 18px;color: white;text-decoration: none;text-align: center;font-size: 12px;font-family: arial;}  p{width: 480px;text-align: center;} </style></head><body> <img src="images/1.jpg" <ul>  <li><a href="images/1.jpg"  <li><a href="images/2.jpg"  <li><a href="images/3.jpg"  <li><a href="images/4.jpg" </ul> <p>這是一段測(cè)試文字</p> <script src="js/jquery-3.0.0.js"></script> <script type="text/javascript">      //方法一:超級(jí)簡(jiǎn)單易懂的方法  /*$("ul li:nth-child(1) a").click(function(event){   $("img").attr("src","images/1.jpg")    var imgsrc=$(this).attr("href")   $("img").attr("src",imgsrc)   $("img").attr("src",$(this).attr("href"))   $("ul li:nth-child(1)").css("background-color","red")   $("ul li:nth-child(2)").css("background-color","#494a93")   $("ul li:nth-child(3)").css("background-color","#494a93")   $("ul li:nth-child(4)").css("background-color","#494a93")   event.preventDefault();  })  $("ul li:nth-child(2) a").click(function(event){   $("img").attr("src","images/2.jpg")   var imgsrc=$(this).attr("href")   $("img").attr("src",imgsrc)   $("ul li:nth-child(2)").css("background-color","red")   $("ul li:nth-child(1)").css("background-color","#494a93")   $("ul li:nth-child(3)").css("background-color","#494a93")   $("ul li:nth-child(4)").css("background-color","#494a93")   event.preventDefault();  })  $("ul li:nth-child(3) a").click(function(event){   $("img").attr("src","images/3.jpg")   var imgsrc=$(this).attr("href")   $("img").attr("src",imgsrc)   $("ul li:nth-child(3)").css("background-color","red")   $("ul li:nth-child(2)").css("background-color","#494a93")   $("ul li:nth-child(1)").css("background-color","#494a93")   $("ul li:nth-child(4)").css("background-color","#494a93")   event.preventDefault();  })  $("ul li:nth-child(4) a").click(function(event){   $("img").attr("src","images/4.jpg")   var imgsrc=$(this).attr("href")   $("img").attr("src",imgsrc)   $("ul li:nth-child(4)").css("background-color","red")   $("ul li:nth-child(2)").css("background-color","#494a93")   $("ul li:nth-child(3)").css("background-color","#494a93")   $("ul li:nth-child(1)").css("background-color","#494a93")   event.preventDefault();  })*/            //方法二:簡(jiǎn)化了方法一重復(fù)的代碼量 ,利用.parent().siblings().find("a")選擇到父級(jí)的其他兄弟元素  $("ul li a").click(function(event){   /*$("img").attr("src","images/4.jpg")*/   var imgsrc=$(this).attr("href");   $("img").attr("src",imgsrc);      $(this).css({"background-color":"red","color":"yellow"});   $(this).parent().siblings().find("a").css({"background-color":"#494a93","color":"white"});   event.preventDefault();   var txt=$(this).attr("title");   console.log(txt); //在控制臺(tái)輸出   $("p").text(txt);  })  /*$("ul li a").hover(function(event){    $(this).css("background-color","red");  },function(){   $(this).css("background-color","#494a93")  })*/ </script></body></html>以上是一個(gè)簡(jiǎn)單地焦點(diǎn)圖事例,思路:圖片路徑寫在a標(biāo)簽的href屬性里,點(diǎn)擊a得到$(this).attr("href");并把這個(gè)值給img的src。用簡(jiǎn)單地jQuery寫一個(gè)點(diǎn)擊事件。
以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持VeVb武林網(wǎng)。
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