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  • js实现图片下载、打印功能

    <!--_meta 作为公共模版分离出去-->
    <!DOCTYPE HTML>
    <html>
    <head>
        <meta charset="utf-8">
        <meta name="renderer" content="webkit|ie-comp|ie-stand">
        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
        <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" />
        <meta http-equiv="Cache-Control" content="no-siteapp" />
        <link rel="Bookmark" href="favicon.ico" >
        <link rel="Shortcut Icon" href="favicon.ico" />
        <!--[if lt IE 9]>
        <script type="text/javascript" src="lib/html5.js"></script>
        <script type="text/javascript" src="lib/respond.min.js"></script>
        <![endif]-->
        <link rel="stylesheet" type="text/css" href="static/h-ui/css/H-ui.min.css" />
        <link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/H-ui.admin.css" />
        <link rel="stylesheet" type="text/css" href="lib/Hui-iconfont/1.0.8/iconfont.css" />
    
        <link rel="stylesheet" type="text/css" href="static/h-ui.admin/skin/default/skin.css" id="skin" />
        <link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/style.css" />
        <!--[if IE 6]>
        <script type="text/javascript" src="http://lib.h-ui.net/DD_belatedPNG_0.0.8a-min.js" ></script>
        <script>DD_belatedPNG.fix('*');</script><![endif]-->
        <!--/meta 作为公共模版分离出去-->
        <style>
            .cont{
                position: absolute;
                top: 0;
                left: 0;
                 100%;
                height: 100%;
            }
            nav{
                position: absolute;
                top: 0;
                left: 0;
                 100%;
                height: 40px;
                line-height: 40px;
                padding: 0 20px;
                font-weight: 700;
                box-sizing: border-box;
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
            }
            h1.title{
                position: absolute;
                left: 20px;
                line-height: 40px;
                top: 0;
                padding: 0;
                font-size: 20px;
            }
            .page-num{
                text-align: center;
            }
            .btn-cont{
                position: absolute;
                right: 20px;
                top: 0;
            }
    /*        .btn-cont a{
                position:relative;
                 60px;
                text-align: center;
            }
            .btn-cont a:hover p{
                display: block;
            }*/
            .btn-cont p{
                /*display: none;*/
                /*position: absolute;*/
                top: 32px;
                left:0;
                 100%;
                text-align: center;
            }
            .img-cont{
                position: relative;
                 80%;
                height: 100%;
                padding: 40px 20px 20px;
                font-size: 0;
                box-sizing: border-box;
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
            }
            .img-box{
                 100%;
                height: 100%;
                overflow: auto;
                text-align: center;
                background: #333;
            }
            .img-cont img{
                 auto;
                height: 100%;
            }
            .a-r-btn{
                position: absolute;
                right: 20px;
                bottom: 20px;
            }
            .a-r-btn .btn{
                display: block;
                margin-top: 10px;
            }
        </style>
    </head>
    <body>
    <div class="cont">
        <nav class="nav">
            <h1 class="title">电子回执单</h1>
            <p class="page-num">1/1</p>
            <div class="btn-group btn-cont">
                <a class="btn radius" id="download"><i class="Hui-iconfont Hui-iconfont-down"></i><p>下载</p></a>
                <a class="btn radius" id="print"><i class="Hui-iconfont Hui-iconfont-dayinji"></i><p>打印</p></a>
            </div>
        </nav>
        <section class="img-cont">
            <div class="img-box">
                <img src="http://images.57us.com/p8/up/2017/0809/201708092245517995.jpg" alt="回执单图片" class="radius" id="receiptImg">
            </div>
        </section>
        <div class="a-r-btn">
            <a class="btn radius" id="increase"><i class="Hui-iconfont Hui-iconfont-add"></i></a>
            <a class="btn radius" id="narrow"><i class="Hui-iconfont Hui-iconfont-jianhao"></i></a>
        </div>
    </div>
    <!--_footer 作为公共模版分离出去-->
    <script type="text/javascript" src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
    <script type="text/javascript" src="lib/layer/2.4/layer.js"></script>
    
    <!-- <script type="text/javascript" src="lib/jquery.validation/1.14.0/jquery.validate.js"></script>
    <script type="text/javascript" src="lib/jquery.validation/1.14.0/validate-methods.js"></script>
    <script type="text/javascript" src="lib/jquery.validation/1.14.0/messages_zh.js"></script>
    <script type="text/javascript" src="static/h-ui/js/H-ui.js"></script> -->
    <script type="text/javascript" src="static/h-ui.admin/js/H-ui.admin.page.js"></script>
    
    <!--/_footer /作为公共模版分离出去-->
    
    <!--请在下方写此页面业务相关的脚本-->
    <script>
        $(function(){
            var imgHeight = 100;
            $("#increase").on("click",function(){
                imgHeight += 10;
                $("#receiptImg").css({
                    "height":imgHeight+"%"
                });
                layer.msg(imgHeight+"%");
            });
            $("#narrow").on("click",function(){
                imgHeight -= 10;
                if(imgHeight <= 100){
                    imgHeight = 100;
                }
                $("#receiptImg").css({
                    "height":imgHeight+"%"
                });
                layer.msg(imgHeight+"%");
            });
            $("#print").on("click",function(){
                var currDoc = $("body").html();
                var printDoc = $(".img-cont").html();
                $("body").html(printDoc);
                $("#receiptImg").css({
                    "width":"100%",
                    "height":"auto"
                });
                $("#receiptImg").removeClass("radius");
                window.print();
                $("body").html(currDoc);
            });
            $("#download").on("click",function(){
                var url = $("#receiptImg").attr("src");
                var evt = document.createEvent("HTMLEvents");
                evt.initEvent("click", false, false);
                $(this).attr({
                    "href":url,
                    "download":"回执单"
                });
                this.dispatchEvent(evt);
            });
        });
    </script>
    </body>
    </html>
    

      

    <!--_meta 作为公共模版分离出去--><!DOCTYPE HTML><html><head>    <meta charset="utf-8">    <meta name="renderer" content="webkit|ie-comp|ie-stand">    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" />    <meta http-equiv="Cache-Control" content="no-siteapp" />    <link rel="Bookmark" href="favicon.ico" >    <link rel="Shortcut Icon" href="favicon.ico" />    <!--[if lt IE 9]>    <script type="text/javascript" src="lib/html5.js"></script>    <script type="text/javascript" src="lib/respond.min.js"></script>    <![endif]-->    <link rel="stylesheet" type="text/css" href="static/h-ui/css/H-ui.min.css" />    <link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/H-ui.admin.css" />    <link rel="stylesheet" type="text/css" href="lib/Hui-iconfont/1.0.8/iconfont.css" />
        <link rel="stylesheet" type="text/css" href="static/h-ui.admin/skin/default/skin.css" id="skin" />    <link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/style.css" />    <!--[if IE 6]>    <script type="text/javascript" src="http://lib.h-ui.net/DD_belatedPNG_0.0.8a-min.js" ></script>    <script>DD_belatedPNG.fix('*');</script><![endif]-->    <!--/meta 作为公共模版分离出去-->    <style>        .cont{            position: absolute;            top: 0;            left: 0;            100%;            height: 100%;        }        nav{            position: absolute;            top: 0;            left: 0;            100%;            height: 40px;            line-height: 40px;            padding: 0 20px;            font-weight: 700;            box-sizing: border-box;            -webkit-box-sizing: border-box;            -moz-box-sizing: border-box;        }        h1.title{            position: absolute;            left: 20px;            line-height: 40px;            top: 0;            padding: 0;            font-size: 20px;        }        .page-num{            text-align: center;        }        .btn-cont{            position: absolute;            right: 20px;            top: 0;        }/*        .btn-cont a{            position:relative;            60px;            text-align: center;        }        .btn-cont a:hover p{            display: block;        }*/        .btn-cont p{            /*display: none;*/            /*position: absolute;*/            top: 32px;            left:0;            100%;            text-align: center;        }        .img-cont{            position: relative;            80%;            height: 100%;            padding: 40px 20px 20px;            font-size: 0;            box-sizing: border-box;            -webkit-box-sizing: border-box;            -moz-box-sizing: border-box;        }        .img-box{            100%;            height: 100%;            overflow: auto;            text-align: center;            background: #333;        }        .img-cont img{            auto;            height: 100%;        }        .a-r-btn{            position: absolute;            right: 20px;            bottom: 20px;        }        .a-r-btn .btn{            display: block;            margin-top: 10px;        }    </style></head><body><div class="cont">    <nav class="nav">        <h1 class="title">电子回执单</h1>        <p class="page-num">1/1</p>        <div class="btn-group btn-cont">            <a class="btn radius" id="download"><i class="Hui-iconfont Hui-iconfont-down"></i><p>下载</p></a>            <a class="btn radius" id="print"><i class="Hui-iconfont Hui-iconfont-dayinji"></i><p>打印</p></a>        </div>    </nav>    <section class="img-cont">        <div class="img-box">            <img src="http://images.57us.com/p8/up/2017/0809/201708092245517995.jpg" alt="回执单图片" class="radius" id="receiptImg">        </div>    </section>    <div class="a-r-btn">        <a class="btn radius" id="increase"><i class="Hui-iconfont Hui-iconfont-add"></i></a>        <a class="btn radius" id="narrow"><i class="Hui-iconfont Hui-iconfont-jianhao"></i></a>    </div></div><!--_footer 作为公共模版分离出去--><script type="text/javascript" src="http://code.jquery.com/jquery-2.1.1.min.js"></script><script type="text/javascript" src="lib/layer/2.4/layer.js"></script>
    <!-- <script type="text/javascript" src="lib/jquery.validation/1.14.0/jquery.validate.js"></script><script type="text/javascript" src="lib/jquery.validation/1.14.0/validate-methods.js"></script><script type="text/javascript" src="lib/jquery.validation/1.14.0/messages_zh.js"></script><script type="text/javascript" src="static/h-ui/js/H-ui.js"></script> --><script type="text/javascript" src="static/h-ui.admin/js/H-ui.admin.page.js"></script>
    <!--/_footer /作为公共模版分离出去-->
    <!--请在下方写此页面业务相关的脚本--><script>    $(function(){        var imgHeight = 100;        $("#increase").on("click",function(){            imgHeight += 10;            $("#receiptImg").css({                "height":imgHeight+"%"            });            layer.msg(imgHeight+"%");        });        $("#narrow").on("click",function(){            imgHeight -= 10;            if(imgHeight <= 100){                imgHeight = 100;            }            $("#receiptImg").css({                "height":imgHeight+"%"            });            layer.msg(imgHeight+"%");        });        $("#print").on("click",function(){            var currDoc = $("body").html();            var printDoc = $(".img-cont").html();            $("body").html(printDoc);            $("#receiptImg").css({                "width":"100%",                "height":"auto"            });            $("#receiptImg").removeClass("radius");            window.print();            $("body").html(currDoc);        });        $("#download").on("click",function(){            var url = $("#receiptImg").attr("src");            var evt = document.createEvent("HTMLEvents");            evt.initEvent("click", false, false);            $(this).attr({                "href":url,                "download":"回执单"            });            this.dispatchEvent(evt);        });    });</script></body></html>

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  • 原文地址:https://www.cnblogs.com/xie-xiao-chao/p/8266978.html
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