迁移部分内容

example/gm_value.js

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+// ==UserScript==
+// @name         gm value
+// @namespace    https://bbs.tampermonkey.net.cn/
+// @version      0.1.0
+// @description  可以持久化存储数据, 并且可以监听数据变化
+// @author       You
+// @match https://bbs.tampermonkey.net.cn/
+// @run-at document-start
+// @grant GM_setValue
+// @grant GM_getValue
+// @grant GM_addValueChangeListener
+// @grant GM_listValues
+// @grant GM_deleteValue
+// @grant GM_cookie
+// ==/UserScript==
+
+GM_addValueChangeListener("test_set", function (name, oldval, newval, remote, tabid) {
+  GM_cookie("store", tabid,(storeId) => {
+    console.log("store",storeId);
+  });
+});
+
+setInterval(() => {
+  console.log(GM_getValue("test_set"));
+  console.log(GM_listValues());
+}, 2000);
+
+setTimeout(() => {
+  GM_deleteValue("test_set");
+}, 3000);
+
+GM_setValue("test_set", new Date().getTime());