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  • 点击截图功能 js canvas

    使用:html2canvas实现浏览器截图

    <html>
        <head>
            <meta name="layout" content="main">
            <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
            <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
            <script type="text/javascript" src="http://html2canvas.hertzen.com/build/html2canvas.js"></script>
            <script type="text/javascript">
                $(document).ready(function() {
                    $(".example1").on("click", function(event) {
                        event.preventDefault();
                        html2canvas($(".aa"), {
                         // height: $(".aa").outerHeight() + 20,
                            allowTaint: true,
                            taintTest: false,
                            onrendered: function(canvas) {
                                canvas.id = "mycanvas";
                                //document.body.appendChild(canvas);  
                                //生成base64图片数据  
                                var dataUrl = canvas.toDataURL();
                                var newImg = document.createElement("img");
                                newImg.src = dataUrl;
                                newImg.className = 'img'
                                $(".product").before(newImg);
                            }
                        });
                    });
                });
            </script>
        </head>
        <body>
            Hello!
            <div class="aa" style="background-color: #abc;">
                test test test test test test
            </div>
            <textArea id="textArea" col="20" rows="10"></textArea>
            生成界面如下:
            <div class="product">
                <input class="example1" type="button" value="button">
            </div>
        </body>
    </html>

    参考:http://www.cnblogs.com/yanweidie/p/5203943.html#_label0

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  • 原文地址:https://www.cnblogs.com/guoxianglei/p/6962805.html
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