diff --git a/js/commonV2.js b/js/commonV2.js
new file mode 100644
index 0000000..17706d0
--- /dev/null
+++ b/js/commonV2.js
@@ -0,0 +1,212 @@
+const projectBaseURL = "https://program.gter.net";
+const projectBaseURL2 = "https://api.gter.net";
+
+if (["localhost", "127.0.0.1"].includes(location.hostname)) {
+    axios.defaults.headers = {
+        Authorization: "3338bf6a2e53dda872da3664a2560b25",
+    };
+}
+
+function $ajax(url) {
+    var data = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    url = url.indexOf("https://") == -1 ?  projectBaseURL2 + url : url;
+
+    if (["localhost", "127.0.0.1"].includes(location.hostname)) data["authorization"] = "3338bf6a2e53dda872da3664a2560b25";
+
+    return new Promise(function (resolve, reject) {
+        axios
+            .post(url, data, {
+                emulateJSON: true,
+                withCredentials: true,
+            })
+            .then(function (res) {
+                var data = typeof res.data == "string" ? JSON.parse(res.data) : res.data;
+                if (data.code == 401) {
+                    openShowWindow();
+                    reject();
+                }
+                if (data.code == 201) creationAlertBox("error", data.message || data.msg);
+                resolve(data);
+            })
+            .catch((err) => {
+                if (err.response?.status == 401) openShowWindow();
+            });
+    });
+}
+
+function $ajaxget(url, data) {
+    if (!data) data = {};
+
+    // data["authorization"] = "97d1c7b2fe6dec05aaf52c0f3b9130e8"
+    if (["localhost", "127.0.0.1"].includes(location.hostname)) data["authorization"] = "3338bf6a2e53dda872da3664a2560b25";
+
+    url = url.indexOf("https://") == -1 ?  projectBaseURL2 + url : url;
+
+    url += objectToQueryString(data);
+    return new Promise((resolve, reject) => {
+        axios
+            .get(url, {
+                emulateJSON: true,
+                withCredentials: true,
+            })
+            .then((res) => {
+                var data = typeof res.data == "string" ? JSON.parse(res.data) : res.data;
+
+                if (data.code == 401) {
+                    openShowWindow();
+                    reject();
+                }
+                if (data.code == 201) creationAlertBox("error", data.message || data.msg);
+
+                resolve(data);
+            })
+            .catch((error) => {
+                // console.log("resolve", resolve)
+
+                // if (error.response?.status == 401) openShowWindow()
+                resolve("");
+            });
+    });
+}
+
+function randomString(n) {
+    let str = "abcdefghijklmnopqrstuvwxyz9876543210";
+    let tmp = "",
+        i = 0,
+        l = str.length;
+    for (i = 0; i < n; i++) {
+        tmp += str.charAt(Math.floor(Math.random() * l));
+    }
+    return tmp;
+}
+
+function formatNumberWithSpaces(number) {
+    // if (typeof number != "string") number = "";
+    if (Number(number) != number) return;
+    // number += "";
+    return number.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+}
+
+// 将一个JavaScript对象转换为路由参数的形式将键值对转换为key=value的形式
+function objectToQueryString(obj = {}) {
+    const queryString = Object.keys(obj)
+        .map((key) => encodeURIComponent(key) + "=" + encodeURIComponent(obj[key]))
+        .join("&");
+    return queryString ? "?" + queryString : "";
+}
+
+function decodeKey(encrypted, key) {
+    return new Promise((resolve, reject) => {
+        try {
+            if (typeof encrypted != "string") resolve(encrypted);
+
+            const encryptedData = CryptoJS.enc.Base64.parse(encrypted);
+
+            const decrypted = CryptoJS.AES.decrypt(
+                {
+                    ciphertext: encryptedData,
+                },
+                CryptoJS.enc.Utf8.parse(key),
+                {
+                    mode: CryptoJS.mode.ECB,
+                    padding: CryptoJS.pad.Pkcs7,
+                }
+            );
+
+            const text = JSON.parse(decrypted.toString(CryptoJS.enc.Utf8));
+            resolve(text);
+        } catch (error) {
+            reject();
+        }
+    });
+}
+
+function getBaseData() {
+    return new Promise((resolve, reject) => {
+        // const storedTime = localStorage.getItem("dataTimestamp")
+        // const storedData = localStorage.getItem("basicData")
+        // const currentTime = new Date().getTime()
+        // const timeDiff = currentTime - parseInt(storedTime)
+        // if (storedTime && storedData && timeDiff <= 5 * 60 * 1000) {
+        //     // 在5分钟内，使用本地存储的数据
+        //     const basicData = JSON.parse(storedData)
+        //     // 处理数据
+        //     resolve(basicData)
+        //     return
+        // }
+        // https://api.gter.net/v1/program/details program/basicData
+        location.host.indexOf("demo.gter.net") > -1;
+        let url = location.host.indexOf("demo.gter.net") == -1 ? "/api/home/basicData" : "/v1/program/basicData";
+        $ajaxget(url).then((res) => {
+            if (res.code != 200) return;
+            const data = res.data;
+            const user = data.user;
+            const basicData = {
+                contrastcount: data.contrastcount || 0,
+                university: data.university,
+                discipline: data.discipline,
+                rankings: data.rankings,
+                encodekey: data.encodekey,
+                user,
+            };
+            // if (user.uin > 0) {
+            //     localStorage.setItem("dataTimestamp", new Date().getTime())
+            //     localStorage.setItem("basicData", JSON.stringify(basicData))
+            // } else {
+            //     localStorage.removeItem("basicData")
+            //     localStorage.removeItem("dataTimestamp")
+            // }
+            resolve(basicData);
+        });
+    });
+}
+
+function openShowWindow() {
+    showWindow("login", "https://passport.gter.net/login/ajax", "get", -1, { cover: true });
+}
+
+function strtimeago(dateStr) {
+    dateStr = dateStr + ""; // 反之传入的不是字符串
+    dateStr = dateStr.replaceAll("-", "/"); // 修改格式
+    var minute = 1000 * 60; //把分，时，天，周，半个月，一个月用毫秒表示
+    var hour = minute * 60;
+    var day = hour * 24;
+    var now = new Date().getTime(); //获取当前时间毫秒
+    let objectTime = new Date(dateStr).getTime();
+    var diffValue = now - objectTime; //时间差
+    if (diffValue < 0) return "刚刚";
+
+    var minC = diffValue / minute; //计算时间差的分，时，天，周，月
+    var hourC = diffValue / hour;
+    var dayC = diffValue / day;
+
+    const diffInMilliseconds = now - objectTime;
+    const diffInYears = diffInMilliseconds / (1000 * 60 * 60 * 24 * 365);
+    const diffInMonths = diffInYears * 12;
+
+    let result = "";
+    if (dayC >= 7) {
+        var datetime = new Date(dateStr);
+        var Nyear = datetime.getFullYear();
+        var Nmonth = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;
+        var Ndate = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();
+        var Nhour = datetime.getHours() < 10 ? "0" + datetime.getHours() : datetime.getHours();
+        var Nmin = datetime.getMinutes() < 10 ? "0" + datetime.getMinutes() : datetime.getMinutes();
+
+        if (diffInYears >= 1) result = Math.floor(diffInYears) + "年前";
+        else if (diffInMonths >= 1) result = Math.floor(diffInMonths) + "个月前";
+    } else if (dayC >= 1) result = parseInt(dayC) + "天前";
+    else if (hourC >= 1 && hourC <= 24) result = parseInt(hourC) + "小时前";
+    else if (minC >= 1 && minC <= 60) result = parseInt(minC) + "分钟前";
+    else result = "刚刚";
+
+    return result;
+}
+
+const rankingKey = {
+    "Shanghai Ranking": "软科",
+    "Times Higher Education": "泰晤士",
+    times: "泰晤士",
+    USNEWS: "U.S. News",
+    "US News": "U.S. News",
+};