diff --git a/src/main/java/com/imwangzhuang/events/HelloController.java b/src/main/java/com/imwangzhuang/events/HelloController.java
index 3daee62..df687a7 100644
--- a/src/main/java/com/imwangzhuang/events/HelloController.java
+++ b/src/main/java/com/imwangzhuang/events/HelloController.java
@@ -1,6 +1,7 @@
 package com.imwangzhuang.events;
 
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -10,4 +11,13 @@ public class HelloController {
     public String hello() {
         return "Hello, chatGPT!";
     }
+
+
+    @GetMapping("/api/getName")
+    public String getName(
+            @RequestParam("lastName") String lastName,
+            @RequestParam("firstName") String firstName
+    ) {
+        return lastName + firstName;
+    }
 }
diff --git a/src/main/java/com/imwangzhuang/events/practice/RegistrationCalculator.java b/src/main/java/com/imwangzhuang/events/practice/RegistrationCalculator.java
new file mode 100644
index 0000000..e1e70f8
--- /dev/null
+++ b/src/main/java/com/imwangzhuang/events/practice/RegistrationCalculator.java
@@ -0,0 +1,41 @@
+package com.imwangzhuang.events.practice;
+
+public class RegistrationCalculator {
+
+    public static void main(String[] args) {
+        String eventName = "Java 入门分享会";
+        int totalSeats = 30;
+        int registeredSeats = 18;
+        int requestedSeats = 13;
+        int pricePerPerson = 50;
+        boolean registrationOpen = true;
+
+        int remainingSeats = calculateRemainingSeats(totalSeats, registeredSeats);
+        int totalPrice = calculateTotalPrice(requestedSeats, pricePerPerson);
+        boolean enoughSeats = requestedSeats <= remainingSeats;
+
+        System.out.println("活动：" + eventName);
+        System.out.println("剩余名额：" + remainingSeats);
+
+        System.out.println(canRegister(totalSeats, registeredSeats, requestedSeats, registrationOpen));
+    }
+
+    static int calculateRemainingSeats(int totalSeats, int registeredSeats) {
+        return totalSeats - registeredSeats;
+    }
+
+    static int calculateTotalPrice(int requestedSeats, int pricePerPerson) {
+        return requestedSeats * pricePerPerson;
+    }
+
+    static boolean canRegister(int totalSeats, int registeredSeats,
+                               int requestedSeats, boolean registrationOpen) {
+        // 在这里写你的判断，最后返回 true 或 false
+        if (!registrationOpen || requestedSeats <= 0 || requestedSeats <= calculateRemainingSeats(totalSeats, registeredSeats)) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+}