感谢高级互助大佬（用户k6280494）提供的决策表实现方式：
https://bbs.fanruan.com/wenda/question/131123.html
另外通过个人研究：得到普通报表添加水印的方式（直接放到web初始化属性中即可）：
function
watermark(settings) {
//默认设置
var defaultSettings = {
watermark_txt: "",
watermark_x: 20, //水印起始位置x轴坐标
watermark_y: 20, //水印起始位置Y轴坐标
watermark_rows: 20, //水印行数
watermark_cols: 20, //水印列数
watermark_x_space: 100, //水印x轴间隔
watermark_y_space: 50, //水印y轴间隔
watermark_color: '#aaa', //水印字体颜色
watermark_alpha: 0.4, //水印透明度
watermark_fontsize: '15px', //水印字体大小
watermark_font: '微软雅黑',
//水印字体
watermark_width: 210, //水印宽度
watermark_height: 80, //水印长度
watermark_angle: 20 //水印倾斜度数
};
$.extend(defaultSettings, settings ===
undefined ? {} : settings);
let newText = "";
for (let i = 0; i <
defaultSettings.watermark_txt.length; i++) {
if (i % 2 !== 0) {
newText += " ";
}
newText +=
defaultSettings.watermark_txt[i];
}
defaultSettings.watermark_txt = newText;
//根据函数的入参调整设置
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];
}
}
//创建虚拟节点对象，在该节点对象中可以放元素，最后只需在页面中添加该节点对象即可。可提高性能
var oTemp =
document.createDocumentFragment();
//获取页面最大宽度
var page_width =
Math.max(document.body.scrollWidth, document.body.clientWidth);
var cutWidth = page_width * 0.0150;
var page_width = page_width - cutWidth;
//获取页面最大高度
var page_height =
Math.max(document.body.scrollHeight, document.body.clientHeight) + 450;
page_height = Math.max(page_height,
window.innerHeight - 30);
//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;
console.log('水印行数',
defaultSettings.watermark_rows);
console.log('水印列数',
defaultSettings.watermark_cols);
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.className = 'mask_div';
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";
//让水印不遮挡页面的点击事件
mask_div.style.pointerEvents =
'none';
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);
}
$(function () {
watermark({watermark_txt: "这是一个水印"});
});
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