自己最近写了一个网页多图上传的脚本,感觉挺实用的,细节就不要说了,直接贴代码了~

<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]); //获取file文件的路径
        hidden.onload=function(){
            var width=hidden.width;
            var height=hidden.height;
            var a=document.getElementById(aa);
                if(width>height){
                imgObjPreview.style.cssText="width:100%";   //重写css样式
                }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="上传" />
</form>

自己替换一些upload.png这张图片就能达到自己的需求,如果说图片点击没反应,别忘了加入jquery

以上所述是小编给大家介绍的基于HTML实现多图上传预览功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网页设计网站的支持！