saber 酱的抱枕

这在萌娘百科注意到的，复制其页面的文字粘贴，会自动多出一段标有出处的话。百度之，找到了代码，兼容主流浏览器。

function addCopyright() {
    var Original = "\n转自 saber酱的抱枕 " + location.href; //追加的内容
    if ("function" == typeof window.getSelection) {
        var c = window.getSelection();
        if ("Microsoft Internet Explorer" == navigator.appName && navigator.appVersion.match(/MSIE ([\d.]+)/)[1] >= 10 || "Opera" == navigator.appName) {
            var g = c.getRangeAt(0),
            h = document.createElement("span");
            h.appendChild(g.cloneContents()),
            g.insertNode(h);
            var i = h.innerHTML.replace(/(?:\n|\r\n|\r)/gi, "").replace(/<\s*script[^>]*>[\s\S]*?<\/script>/gim, "").replace(/<\s*style[^>]*>[\s\S]*?<\/style>/gim, "").replace(/<!--.*?-->/gim, "").replace(/<!DOCTYPE.*?>/gi, "");
            try {
                document.getElementsByTagName("body")[0].removeChild(h)
            } catch(f) {
                h.style.display = "none",
                h.innerHTML = ""
            }
        } else var d = "" + c;
        var e = document.getElementsByTagName("body")[0],
        f = document.createElement("div");
        f.style.position = "absolute",
        f.style.left = "-99999px",
        e.appendChild(f),
        f.innerHTML = d.replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, "$1<br />$2") + "<br />" + Original,
        c.selectAllChildren(f),
        setTimeout(function() {
            e.removeChild(f)
        },
        0)
    } else if ("object" == typeof document.selection.createRange) {
        event.returnValue = !1;
        var c = document.selection.createRange().text;
        window.clipboardData.setData("Text", c + "\n" + Original)
    }
};
document.body.oncopy = addCopyright;

js复制内容时自动加上版权信息