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JS實(shí)現(xiàn)分頁(yè)瀏覽橫向圖片(類(lèi)輪播)實(shí)例代碼

來(lái)源：九壹網(wǎng)

昨天朋友問(wèn)我怎么用js實(shí)現(xiàn)分頁(yè)瀏覽橫向圖片功能，其實(shí)實(shí)現(xiàn)代碼很簡(jiǎn)單的，下面小編給大家?guī)?lái)了具體實(shí)現(xiàn)代碼，代碼如下所示：

common.js

function $(id) { 
 return document.getElementById(id); 
} 
function $_tag(tag) { 
 return document.getElementsByTagName(tag); 
}

index.html

<!DOCTYPE html> 
<html lang="en"> 
<head> 
 <meta charset="UTF-8"> 
 <title>Document</title> 
 <style> 
 a { 
 cursor: pointer; 
 } 
 .div1 { 
 width: 410px; /* 可以去掉 */ 
 height: 100px; 
 overflow-x: hidden; 
 white-space: nowrap; 
 } 
 .div2 { 
 display: none; 
 } 
 </style> 
</head> 
<body> 
 <div class="div1" id="div1"> 
 </div> 
 <a onclick="pre()">上一頁(yè)</a> 
 <a onclick="next()">下一頁(yè)</a> 
 <div class="div2"> 
 <img src="images/1.jpg" alt=""> 
 <img src="images/2.jpg" alt=""> 
 <img src="images/3.jpg" alt=""> 
 <img src="images/4.jpg" alt=""> 
 <img src="images/5.jpg" alt=""> 
 <img src="images/6.jpg" alt=""> 
 <img src="images/7.jpg" alt=""> 
 </div> 
 <script src="js/common.js"></script> 
 <script> 
 //搞一個(gè)拼img標(biāo)簽的函數(shù) 傳參數(shù) for循環(huán) 
 //擴(kuò)展、穩(wěn)定、兼容、好用(簡(jiǎn)單)... 
 //<img src="images/7.jpg" alt=""> 
 var count = 4; // 每頁(yè)的圖片數(shù)目 
 var currentpage = 1; //當(dāng)前頁(yè)數(shù) 
 var imgs = $_tag("img"); 
 //console.log(imgs); 可以深入了解下 
 console.log("圖片總數(shù)：" + imgs.length); 
 var totalpage = Math.ceil(imgs.length/count); 
 console.log("總頁(yè)數(shù)：" + totalpage); 
 function pre() { 
 if(currentpage == 1){ 
 console.log("已經(jīng)是第一頁(yè)了!"); 
 return; 
 }else if(currentpage > 1){ 
 var tmp = (currentpage - 2) * count + 1; 
 var str = ""; 
 str += "<img src='" + "images/" + tmp + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+1) + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+2) + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+3) + ".jpg'>"; 
 currentpage -= 1; 
 console.log(str); 
 $("div1").innerHTML = str; 
 } 
 } 
 function next() { 
 if(currentpage == totalpage){ 
 console.log("已經(jīng)是最后一頁(yè)了!"); 
 }else if(currentpage == (totalpage - 1)){ 
 var sur = imgs.length % count; 
 var tmp1 = currentpage * count + 1; 
 var str = ""; 
 console.log("剩余數(shù):" + sur); 
 for(var i=0;i<sur;i++){ 
 console.log("第幾張：" + (tmp1+i)); 
 str += "<img src=\"" + "images/" + (tmp1+i) + ".jpg\">"; 
 } 
 currentpage += 1; 
 console.log(str); 
 $("div1").innerHTML = str; 
 }else if(currentpage > 0){ 
 var tmp = currentpage * count + 1; 
 console.log("tmp:" + tmp); 
 var str = ""; 
 str += "<img src='" + "images/" + tmp + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+1) + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+2) + ".jpg'>"; 
 str += "<img src='" + "images/" + (tmp+3) + ".jpg'>"; 
 currentpage += 1; 
 $("div1").innerHTML = str; 
 } 
 } 
 function firstpage() { 
 var str = ""; 
 str += "<img src='" + "images/" + 1 + ".jpg'>"; 
 str += "<img src='" + "images/" + 2 + ".jpg'>"; 
 str += "<img src='" + "images/" + 3 + ".jpg'>"; 
 str += "<img src='" + "images/" + 4 + ".jpg'>"; 
 console.log(str); 
 $("div1").innerHTML = str; 
 } 
 window.onload = function() { 
 firstpage(); 
 } 
 </script> 
</body> 
</html>

總結(jié)

以上所述是小編給大家介紹的JS實(shí)現(xiàn)分頁(yè)瀏覽橫向圖片(類(lèi)輪播)實(shí)例代碼，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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JS實(shí)現(xiàn)分頁(yè)瀏覽橫向圖片(類(lèi)輪播)實(shí)例代碼