自己最近寫了一個(gè)網(wǎng)頁多圖上傳的腳本,感覺挺實(shí)用的,細(xì)節(jié)就不要說了,直接貼代碼了~
<head>
<style>
.pro_img{ margin-left:10px;margin-top:10px;width:300px;height: 300px;background-color: black; --border-radius:999em; overflow:hidden;float:left; --margin:5% 35%;position: relative;}
.pro_img img{ position: absolute;left: 50%;top:50%; transform: translate(-50%,-50%);width: 100%
}
.pro_img {position:relative}
.pro_img input{position: absolute;width: 100%;height: 100%;margin:0;opacity:0;z-index: 100;}
</style>
<script type="text/javascript" src="jquery.min.js"></script>
<script>
name_pic=1;
function t1(o){
//alert(name_pic);
if(o==1 || name_pic!=1){
var file="file"+o;
var img="img"+o;
var hid="hidden"+o;
var aa="a"+o;
}else{
var file="file"+name_pic;
var img="img"+name_pic;
var hid="hidden"+name_pic;
var aa="a"+name_pic;
}
var docObj = document.getElementById(file);
var imgObjPreview = document.getElementById(img);
var hidden=document.getElementById(hid);
// alert(hidden);
if (docObj.files && docObj.files[0]) {
hidden.src=window.URL.createObjectURL(docObj.files[0]); //獲取file文件的路徑
hidden.onload=function(){
var width=hidden.width;
var height=hidden.height;
var a=document.getElementById(aa);
if(width>height){
imgObjPreview.style.cssText='width:100%'; //重寫css樣式
}else{
imgObjPreview.style.cssText='height:100%;width:auto;';
}
imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]);
imgObjPreview.style.display = 'block';
}
}else{
return false;
}
if(o==name_pic){
var count=$('.pro_img').length;
if(count<6){
name_pic++;
var pic_div="<a class='pro_img' id='a"+name_pic+"' ><input type='file' id='file"+name_pic+"' accept='image/*' multiple='multiple' name='pic[]' onchange='t1("+name_pic+")'/><img src='upload.jpg' id='img"+name_pic+"'></a><img id='hidden"+name_pic+"' style='display:none;'>";
$('#upload').append(pic_div);
}
}
}
</script>
</head>
<!-- multiple='multiple' -->
<form action="http://192.168.0.7/index.php/Home/Pic/upload" enctype="multipart/form-data" method="post">
<div id='upload'>
<a class='pro_img' id='a1' >
<input type='file' id='file1' accept='image/*' multiple='multiple' name='pic[]' onchange='t1(1)'/>
<img src='upload.jpg' id='img1'></a>
<img id='hidden1' style='display:none;'>
</div>
<input type='submit' value="上傳" />
</form>
自己替換一些upload.png這張圖片就能達(dá)到自己的需求,如果說圖片點(diǎn)擊沒反應(yīng),別忘了加入jquery
以上所述是小編給大家介紹的基于HTML實(shí)現(xiàn)多圖上傳預(yù)覽功能，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對腳本之家網(wǎng)站的支持！
