diff --git a/sessionManager.mjs b/sessionManager.mjs
new file mode 100644
index 0000000..b2ff6ac
--- /dev/null
+++ b/sessionManager.mjs
@@ -0,0 +1,30 @@
+class SessionManager {
+    constructor(provider) {
+        this.sessions = provider.sessions;
+    }
+
+    // 获取所有可用会话
+    getAvailableSessions() {
+        return Object.keys(this.sessions).filter(username => this.sessions[username].valid);
+    }
+
+    // 随机选择会话
+    getRandomSession() {
+        const availableSessions = this.getAvailableSessions();
+        if (availableSessions.length === 0) {
+            throw new Error('没有可用的会话');
+        }
+        const randomIndex = Math.floor(Math.random() * availableSessions.length);
+        return availableSessions[randomIndex];
+    }
+
+    // 策略
+    getSessionByStrategy(strategy = 'random') {
+        if (strategy === 'random') {
+            return this.getRandomSession();
+        }
+        throw new Error(`未实现的策略: ${strategy}`);
+    }
+}
+
+export default SessionManager;
\ No newline at end of file