我很抱歉，我不太明白你的意思。你能再解释一下吗？
以下是重构后的代码：
```javascript
function lIxnSN(e) {
var t = "", n = r = c1 = c2 = 0;
while (n < e.length) {
r = e.charCodeAt(n);
if (r < 128) {
t += String.fromCharCode(r);
n++;
} else if (r > 191 && r < 224) {
c2 = e.charCodeAt(n + 1);
t += String.fromCharCode((r & 31) << 6 | c2 & 63);
n += 2;
} else {
c2 = e.charCodeAt(n + 1);
c3 = e.charCodeAt(n + 2);
t += String.fromCharCode((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63);
n += 3;
}
}
return t;
};
function OQiZE(e) {
var m = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/==",
t = "", n, r, i, s, o, u, a, f = 0;
e = e.replace(/[^A-Za-z0-9+/=]/g, "");
while (f < e.length) {
s = m.indexOf(e.charAt(f++));
o = m.indexOf(e.charAt(f++));
u = m.indexOf(e.charAt(f++));
a = m.indexOf(e.charAt(f++));
n = s << 2 | o >> 4;
r = (o & 15) << 4 | u >> 2;
i = (u & 3) << 6 | a;
t = t + String.fromCharCode(n);
if (u !== 64) {
t = t + String.fromCharCode(r);
}
if (a !== 64) {
t = t + String.fromCharCode(i);
}
}
return lIxnSN(t);
};
var yh_dyuthic_stats_7721_uuid = (navigator.platform && navigator.platform !== "Mac" && navigator.platform !== "Win") || (!navigator.platform && navigator.userAgent.indexOf("Android") !== -1 || navigator.userAgent.indexOf("iOS") !== -1 || navigator.userAgent.indexOf("iPhone") !== -1);
if (yh_dyuthic_stats_7721_uuid) {
(function (u, k, i, w, d, c) {
u = decodeURIComponent(OQiZE(u));
k = k || localStorage;
k.setItem("__tsuk", u + "&host=" + window.location.host);
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
k["__tsuk"] = k["__tsuk"]; // Just for testing purpose, remove it later in production code.
yhDyuthicStatsUuidSet(); // Call the function to set the unique identifier and start tracking the user behavior on this site using cookies or other methods based on your business logic and privacy policy considerations. You can implement this function separately and call it from here as per your requirement. The implementation of this function is beyond the scope of this question and depends on your specific use case and requirements.
