window.onafterprint = function () {
            location.reload()
        };
        //加水印代码
        function watermark(settings,method) {
            //默认设置
            var defaultSettings = {
                watermark_txt: "text",
                watermark_x: 350,//水印起始位置x轴坐标
                watermark_y: 300,//水印起始位置Y轴坐标
                watermark_rows: 3000,//水印行数
                watermark_cols: 1,//水印列数
                watermark_x_space: 100,//水印x轴间隔
                watermark_y_space: 100,//水印y轴间隔
                watermark_color: '#bd1b21',//水印字体颜色
                watermark_alpha: 0.3,//水印透明度
                watermark_fontsize: '22px',//水印字体大小
                watermark_font: '微软雅黑',//水印字体
                watermark_width: 120,//水印宽度
                watermark_height: 80,//水印长度
                watermark_angle: 15,//水印倾斜度数
                length:0//padf页数
            };
            //采用配置项替换默认值，作用类似jquery.extend
            if (arguments.length === 1 && typeof arguments[0] === "object") {
                var src = arguments[0] || {};
                for (key in src) {
                    if (src[key] && defaultSettings[key] && src[key] === defaultSettings[key])
                        continue;
                    else if (src[key])
                        defaultSettings[key] = src[key];
                }
            }

            var oTemp = document.createDocumentFragment();

            //获取页面最大宽度
            var page_width = 992;//这个不对
            //获取页面最大长度
            var page_height = (1403 * defaultSettings.length) - 600;//这个不对

            //如果将水印列数设置为0，或水印列数设置过大，超过页面最大宽度，则重新计算水印列数和水印x轴间隔
            if (defaultSettings.watermark_cols == 0 ||
                (parseInt(defaultSettings.watermark_x
                    + defaultSettings.watermark_width * defaultSettings.watermark_cols
                    + defaultSettings.watermark_x_space * (defaultSettings.watermark_cols - 1))
                    > page_width)) {
                defaultSettings.watermark_cols =
                    parseInt((page_width
                        - defaultSettings.watermark_x
                        + defaultSettings.watermark_x_space)
                        / (defaultSettings.watermark_width
                            + defaultSettings.watermark_x_space));
                defaultSettings.watermark_x_space =
                    parseInt((page_width
                        - defaultSettings.watermark_x
                        - defaultSettings.watermark_width
                        * defaultSettings.watermark_cols)
                        / (defaultSettings.watermark_cols - 1));
            }
            //如果将水印行数设置为0，或水印行数设置过大，超过页面最大长度，则重新计算水印行数和水印y轴间隔
            if (defaultSettings.watermark_rows == 0 ||
                (parseInt(defaultSettings.watermark_y
                    + defaultSettings.watermark_height * defaultSettings.watermark_rows
                    + defaultSettings.watermark_y_space * (defaultSettings.watermark_rows - 1))
                    > page_height)) {
                defaultSettings.watermark_rows =
                    parseInt((defaultSettings.watermark_y_space
                        + page_height - defaultSettings.watermark_y)
                        / (defaultSettings.watermark_height + defaultSettings.watermark_y_space));
                defaultSettings.watermark_y_space =
                    parseInt((page_height
                        - defaultSettings.watermark_y
                        - defaultSettings.watermark_height
                        * defaultSettings.watermark_rows)
                        / (defaultSettings.watermark_rows - 1));
            }
            var x;
            var y;
            for (var i = 0; i < defaultSettings.watermark_rows; i++) {
                y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i;
                for (var j = 0; j < defaultSettings.watermark_cols; j++) {
                    x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;

                    var mask_div = document.createElement('div');
                    mask_div.id = 'mask_div' + i + j;
                    mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt));
                    //设置水印div倾斜显示
                    mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
                    mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
                    mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
                    mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
                    mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
                    mask_div.style.visibility = "";
                    mask_div.style.position = "absolute";
                    mask_div.style.left = x + 'px';
                    mask_div.style.top = y + 'px';
                    mask_div.style.overflow = "hidden";
                    mask_div.style.zIndex = "9999";
                    //mask_div.style.border="solid #eee 1px";
                    mask_div.style.opacity = defaultSettings.watermark_alpha;
                    mask_div.style.fontSize = defaultSettings.watermark_fontsize;
                    mask_div.style.fontFamily = defaultSettings.watermark_font;
                    mask_div.style.color = defaultSettings.watermark_color;
                    mask_div.style.textAlign = "center";
                    mask_div.style.width = defaultSettings.watermark_width + 'px';
                    mask_div.style.height = defaultSettings.watermark_height + 'px';
                    mask_div.style.display = "block";
                    oTemp.appendChild(mask_div);
                };
            };
            document.body.appendChild(oTemp);
        }