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  • js上传图片预览

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Document</title>
        <script type="text/javascript" src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
        <script type="text/javascript">
        $(function(){
            $(".file").change(function(){
                var fileImg = $(".fileImg");
                var explorer = navigator.userAgent;
                var imgSrc = $(this)[0].value;
                if (explorer.indexOf('MSIE') >= 0) {
                    if (!/.(jpg|jpeg|png|JPG|PNG|JPEG)$/.test(imgSrc)) {
                        imgSrc = "";
                        fileImg.attr("src","/img/default.png");
                        return false;
                    }else{
                        fileImg.attr("src",imgSrc);
                    }
                }else{
                    if (!/.(jpg|jpeg|png|JPG|PNG|JPEG)$/.test(imgSrc)) {
                        imgSrc = "";
                        fileImg.attr("src","/img/default.png");
                        return false;
                    }else{
                        var file = $(this)[0].files[0];
                        var url = URL.createObjectURL(file);
                        fileImg.attr("src",url);
                    }
                }
            })
        })
        </script>
    </head>
    <body>
        <form enctype="multipart/form-date" method="post">
            <input type="file" class="file">
            <input type="submit" class="sub">
        </form>
        <img src="" class="fileImg">
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/lxjshuju/p/6874464.html
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