多图片上传预览

经常遇到图片上传预览，这里分享个
两种形式------多张图片预览
<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title></title>
    <script type="text/javascript" src="../lib/jquery/jquery.min.js"></script>

    <style type="text/css">
        .imgbox,.imgbox1
{
            float: left;
            margin-right: 20px;
            margin-top: 20px;
            position: relative;
            width: 182px;
            height: 142px;
            border: 1px solid red;
            overflow: hidden;
        }
        .imgbox1{border: 1px solid blue;
        }


        .imgnum{
            left: 0px;
            top: 0px;
            margin: 0px;
            padding: 0px;
        }
        .imgnum input,.imgnum1 input {
            position: absolute;
            width: 182px;
            height: 142px;
            opacity: 0;
        }
        .imgnum img,.imgnum1 img {
            width: 100%;
            height: 142px;
        }
        .close,
        .close1 {
            color: red;
            position: absolute;
            left: 170px;
            top: 0px;
            display: none;
        }





    </style>
</head>

<body>
<div id="img">
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>
    <div class="imgbox">
        <div class="imgnum">
            <input type="file" class="filepath" />
            <span class="close">X</span>
            <img src="" class="img2" />
        </div>
    </div>



    <!--蓝框是自动在后面添加添加图片框-->
<div class="imgbox1">
        <div class="imgnum">
            <input type="file" class="filepath1" />
            <span class="close1">X</span>
            <!--<img src="btn.png" class="img11" />-->
<img src="" class="img22" />
        </div>
    </div>

</div>

</body>
<script type="text/javascript">
    $(document).ready(function () {
        $(".filepath").on("change",function() {
            alert($('.imgbox').length);
            var srcs = getObjectURL(this.files[0]);   //获取路径
$(this).nextAll(".img1").hide();   //this指的是input
$(this).nextAll(".img2").show();  //fireBUg查看第二次换图片不起做用
$(this).nextAll('.close').show();   //this指的是input
$(this).nextAll(".img2").attr("src",srcs);    //this指的是input
$(this).val('');    //必须制空
$(".close").on("click",function() {
                $(this).hide();     //this指的是span
$(this).nextAll(".img2").hide();
                $(this).nextAll(".img1").show();
            })
        })
    })



    function getObjectURL(file) {
        var url = null;
        if (window.createObjectURL != undefined) {
            url = window.createObjectURL(file)
        } else if (window.URL != undefined) {
            url = window.URL.createObjectURL(file)
        } else if (window.webkitURL != undefined) {
            url = window.webkitURL.createObjectURL(file)
        }
        return url
};





    $(function() {
        $("#img").on("change",".filepath1",function() {
            //alert($('.imgbox1').length);
var srcs = getObjectURL(this.files[0]);   //获取路径
alert(srcs);
            //this指的是input
            /* $(this).nextAll(".img22").attr("src",srcs);    //this指的是input
             $(this).nextAll(".img22").show();  //fireBUg查看第二次换图片不起做用*/
var htmlImg='<div class="imgbox1">'+
                '<div class="imgnum1">'+
                '<input type="file" class="filepath1" />'+
                '<span class="close1">X</span>'+
                '<img src="btn.png" class="img11" />'+
                '<img src="'+srcs+'" class="img22" />'+
                '</div>'+
                '</div>';

            $(this).parent().parent().before(htmlImg);
            $(this).val('');    //必须制空
$(this).parent().parent().prev().find(".img11").hide();   //this指的是input
$(this).parent().parent().prev().find('.close1').show();

            $(".close1").on("click",function() {
                $(this).hide();     //this指的是span
$(this).nextAll(".img22").hide();
                $(this).nextAll(".img11").show();
                if($('.imgbox1').length>1){
                    $(this).parent().parent().remove();
                }

            })
        })
    })

</script>

</html>
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