<script>
// 修复点1：严格模式，避免全局变量污染
'use strict';
// 水印核心函数
function watermark(settings) {
// 默认配置
const defaultSettings = {
watermark_txt: "text",
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
};
// 修复点2：简化配置合并逻辑，避免冗余判断
const options = { ...defaultSettings, ...(settings || {}) };
// 修复点3：先清除旧水印，避免重复叠加
const oldWatermarks = document.querySelectorAll('.mask_div');
oldWatermarks.forEach(div => div.remove());
// 修复点4：优化页面尺寸计算，避免重复声明
const page_width = Math.max(document.body.scrollWidth, document.body.clientWidth) - (Math.max(document.body.scrollWidth, document.body.clientWidth) * 0.015);
// 修复点5：合理计算页面高度，移除硬编码的450
const page_height = Math.max(document.body.scrollHeight, document.body.clientHeight, window.innerHeight - 30);
// 修复点6：容错处理，避免除数为0
const calcColCount = () => {
const totalColWidth = options.watermark_width + options.watermark_x_space;
return Math.max(1, Math.floor((page_width - options.watermark_x + options.watermark_x_space) / totalColWidth));
};
const calcRowCount = () => {
const totalRowHeight = options.watermark_height + options.watermark_y_space;
return Math.max(1, Math.floor((page_height - options.watermark_y + options.watermark_y_space) / totalRowHeight));
};
// 重新计算列数和x间隔
if (options.watermark_cols === 0 || (options.watermark_x + options.watermark_width * options.watermark_cols + options.watermark_x_space * (options.watermark_cols - 1)) > page_width) {
options.watermark_cols = calcColCount();
options.watermark_x_space = options.watermark_cols > 1
? Math.floor((page_width - options.watermark_x - options.watermark_width * options.watermark_cols) / (options.watermark_cols - 1))
: 0;
}
// 重新计算行数和y间隔
if (options.watermark_rows === 0 || (options.watermark_y + options.watermark_height * options.watermark_rows + options.watermark_y_space * (options.watermark_rows - 1)) > page_height) {
options.watermark_rows = calcRowCount();
options.watermark_y_space = options.watermark_rows > 1
? Math.floor((page_height - options.watermark_y - options.watermark_height * options.watermark_rows) / (options.watermark_rows - 1))
: 0;
}
const oTemp = document.createDocumentFragment();
let x, y;
for (let i = 0; i < options.watermark_rows; i++) {
y = options.watermark_y + (options.watermark_y_space + options.watermark_height) * i;
for (let j = 0; j < options.watermark_cols; j++) {
x = options.watermark_x + (options.watermark_width + options.watermark_x_space) * j;
const mask_div = document.createElement('div');
mask_div.id = `mask_div${i}${j}`;
mask_div.className = 'mask_div';
mask_div.textContent = options.watermark_txt; // 替代createTextNode，更简洁
// 修复点7：简化CSS前缀，保留标准写法
mask_div.style.transform = `rotate(-${options.watermark_angle}deg)`;
mask_div.style.visibility = "visible";
mask_div.style.position = "absolute";
mask_div.style.left = `$px`;
mask_div.style.top = `${y}px`;
mask_div.style.overflow = "hidden";
mask_div.style.zIndex = "9999";
mask_div.style.pointerEvents = 'none'; // 不遮挡点击
mask_div.style.opacity = options.watermark_alpha;
mask_div.style.fontSize = options.watermark_fontsize;
mask_div.style.fontFamily = options.watermark_font;
mask_div.style.color = options.watermark_color;
mask_div.style.textAlign = "center";
mask_div.style.width = `${options.watermark_width}px`;
mask_div.style.height = `${options.watermark_height}px`;
mask_div.style.display = "block";
oTemp.appendChild(mask_div);
}
}
document.body.appendChild(oTemp);
}
// 修复点8：简化时间格式化函数，移除嵌套函数
function getNow() {
const d = new Date();
// 补零函数简化
const pad = (t) => t.toString().padStart(2, '0');
const year = d.getFullYear();
const month = pad(d.getMonth() + 1);
const day = pad(d.getDate());
const hour = pad(d.getHours());
const minute = pad(d.getMinutes());
const second = pad(d.getSeconds());
return `${year}年${month}月${day}日 ${hour}时${minute}分${second}秒`;
}
// 修复点9：确保DOM加载完成后执行，核心修复！
// document.addEventListener('DOMContentLoaded', () => {
// const now = getNow();
// watermark({ "watermark_txt": "小破孩的小站" + now });
//
// // 修复点10：监听窗口大小变化，重新渲染水印
// window.addEventListener('resize', () => {
// watermark({ "watermark_txt": "小破孩的小站" + now });
// });
// });
</script> function watermark(settings) {
//默认设置
var defaultSettings = {
watermark_txt: "text",
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
};
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 = 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;
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 getNow() {
var d = new Date();
var year = d.getFullYear();
var month = change(d.getMonth() + 1);
var day = change(d.getDate());
var hour = change(d.getHours());
var minute = change(d.getMinutes());
var second = change(d.getSeconds());
function change(t) {
if (t < 10) {
return "0" + t;
} else {
return t;
}
}
var time = year + '年' + month + '月' + day + '日 ' + hour + '时' + minute + '分' + second + '秒';
return time;
}使用方法：
var now = getNow();
watermark({ "watermark_txt": "小破孩的小站" + now });var now = getNow();
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