添加 pubsub.ts

pubsub.ts

@@ -0,0 +1,30 @@
+interface PubSub {
+    subscribe(event: string, listener: (data: any) => void): void;
+    unsubscribe(event: string, listener: (data: any) => void): void;
+    publish(event: string, data: any): void;
+}
+
+// 创建 PubSub 实例
+const pubSub = new SimplePubSub();
+
+// 定义订阅者
+const subscriber1 = (data: any) => {
+    console.log(`Subscriber 1 received: ${data}`);
+};
+
+const subscriber2 = (data: any) => {
+    console.log(`Subscriber 2 received: ${data}`);
+};
+
+// 订阅事件
+pubSub.subscribe('event1', subscriber1);
+pubSub.subscribe('event1', subscriber2);
+
+// 发布事件
+pubSub.publish('event1', 'Hello, World!');
+
+// 取消订阅
+pubSub.unsubscribe('event1', subscriber1);
+
+// 发布事件
+pubSub.publish('event1', 'Hello again!');