init

utils/eventManager.js

@@ -0,0 +1,24 @@
+// 事件管理器模块
+const eventManager = {
+  listeners: {},
+  on(event, callback) {
+    if (!this.listeners[event]) {
+      this.listeners[event] = [];
+    }
+    this.listeners[event].push(callback);
+  },
+  off(event, callback) {
+    const callbacks = this.listeners[event];
+    if (callbacks) {
+      this.listeners[event] = callbacks.filter(cb => cb !== callback);
+    }
+  },
+  emit(event, data) {
+    const callbacks = this.listeners[event];
+    if (callbacks) {
+      callbacks.forEach(callback => callback(data));
+    }
+  }
+};
+
+module.exports = eventManager;