html端输入数据，利用qrcode.js生成打印二维码

       在前端页面中导入qrcode.js（下载）和jquery.js（下载）

       index.html

<script>  
    function print() {  
        var textbox1 = $('input[name="textbox1"]').val();  
        if(!textbox1){  
            alert("待生成的页面不能为空");  
        }else{  
            var symHref = 'print.html?id=' + textbox1;  
            window.open(symHref);  
        }  
    }  
</script>  

       print.html

<script>  
    var text = window.location.href.split('?')[1].split('=')[1];  
    var text = decodeURI(text);  
    var myDate = new Date();  
    var time = myDate.getFullYear() + "-" + myDate.getMonth() + "-" + myDate.getDate();  
    myHtml = "<div style='border:2px solid #000;width:405px;height:260px;position:relative;' class='demo'>"  
        + "<div style='width:405px;margin-top:30px;'>"  
        + "<table cellspacing=\"15px\";cellpadding=\"0px\";border=\"0\";>"  
        + "<tr>"  
        + "<td style='width:200px;font-size:10pt;text-align:left;font-weight:bold;font-family:微软雅黑;'>"  
        + '当前日期：'  
        + time  
        + "</td>"  
        + "</tr>"  
        + "<tr>"  
        + "<td style='width:200px;font-size:10pt;text-align:left;font-weight:bold;font-family:微软雅黑;'>"  
        + '生成的数据：'  
        + text  
        + "</td>"  
        + "</tr>"  
        + "</table>"  
        + "</div>"  
        + "<div style='z-index:-1;position:absolute; top:25px; right:-10px;'>"  
        + create_qrcode(text, 9, "H", 4)  
        + "</div>"  
        + "</div>"  
    document.body.innerHTML = myHtml;  
    window.print();  
</script>  

       示范代码已上传