diff --git a/src/main/java/com/greenorange/promotion/service/user/impl/UserInfoServiceImpl.java b/src/main/java/com/greenorange/promotion/service/user/impl/UserInfoServiceImpl.java
index 294ab48..339ecb5 100644
--- a/src/main/java/com/greenorange/promotion/service/user/impl/UserInfoServiceImpl.java
+++ b/src/main/java/com/greenorange/promotion/service/user/impl/UserInfoServiceImpl.java
@@ -234,6 +234,13 @@ public class UserInfoServiceImpl extends ServiceImpl<UserInfoMapper, UserInfo>
     @Override
     public String getVerificationCode(String phoneNumber) {
         ThrowUtils.throwIf(RegexUtils.isPhoneInvalid(phoneNumber), ErrorCode.PARAMS_ERROR, "手机号格式错误");
+
+        // 判断手机号是否已注册
+        LambdaQueryWrapper<UserInfo> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper.eq(UserInfo::getPhoneNumber, phoneNumber);
+        UserInfo userInfo = this.getOne(lambdaQueryWrapper);
+        ThrowUtils.throwIf(userInfo != null, ErrorCode.OPERATION_ERROR, "手机号未注册");
+
         String verificationCode = SendSmsUtil.getVerificationCode(phoneNumber);
         ThrowUtils.throwIf(verificationCode == null, ErrorCode.OPERATION_ERROR, "验证码获取失败");
         redisTemplate.opsForValue().set(SystemConstant.VERIFICATION_CODE + ":" + verificationCode, verificationCode, 5, TimeUnit.MINUTES);
diff --git a/src/test/java/com/greenorange/promotion/draft/PricingTest.java b/src/test/java/com/greenorange/promotion/draft/PricingTest.java
new file mode 100644
index 0000000..d5760f9
--- /dev/null
+++ b/src/test/java/com/greenorange/promotion/draft/PricingTest.java
@@ -0,0 +1,84 @@
+package com.greenorange.promotion.draft;
+
+// 价格接口
+interface Price {
+    double getPrice(double price);  // 获取最终报价
+}
+
+// 策略抽象类
+abstract class Strategy {
+    protected Price priceStrategy;
+
+    public Strategy(Price priceStrategy) {
+        this.priceStrategy = priceStrategy;
+    }
+
+    public abstract double calculatePrice(double price);
+}
+
+// 普通用户（全价）
+class NormalCustomer extends Strategy {
+    public NormalCustomer() {
+        super(price -> price); // 全价策略
+    }
+
+    @Override
+    public double calculatePrice(double price) {
+        return priceStrategy.getPrice(price); // 返回全价
+    }
+}
+
+// 老客户（5%折扣）
+class OldCustomer extends Strategy {
+    public OldCustomer() {
+        super(price -> price * 0.95); // 5%折扣
+    }
+
+    @Override
+    public double calculatePrice(double price) {
+        return priceStrategy.getPrice(price); // 应用折扣
+    }
+}
+
+class BigCustomer extends Strategy {
+    public BigCustomer() {
+        super(price -> price * 0.90); // 10%折扣
+    }
+
+    @Override
+    public double calculatePrice(double price) {
+        return priceStrategy.getPrice(price); // 应用折扣
+    }
+}
+
+// 报价管理类
+class PricingManager {
+    private Strategy strategy;
+
+    // 设置不同客户的策略
+    public void setStrategy(Strategy strategy) {
+        this.strategy = strategy;
+    }
+
+    // 计算报价
+    public double getFinalPrice(double price) {
+        return strategy.calculatePrice(price);
+    }
+}
+
+// 测试类
+public class PricingTest {
+    public static void main(String[] args) {
+        PricingManager pricingManager = new PricingManager();
+
+        // 测试不同客户的价格
+        pricingManager.setStrategy(new NormalCustomer());  // 普通用户
+        System.out.println("普通用户报价: " + pricingManager.getFinalPrice(1000));
+
+        pricingManager.setStrategy(new OldCustomer());    // 老客户
+        System.out.println("老客户报价: " + pricingManager.getFinalPrice(1000));
+
+        pricingManager.setStrategy(new BigCustomer());    // 大客户
+        System.out.println("大客户报价: " + pricingManager.getFinalPrice(1000));
+    }
+}
diff --git a/src/test/java/com/greenorange/promotion/light/CommandPatternExample.java b/src/test/java/com/greenorange/promotion/light/CommandPatternExample.java
new file mode 100644
index 0000000..8e53dce
--- /dev/null
+++ b/src/test/java/com/greenorange/promotion/light/CommandPatternExample.java
@@ -0,0 +1,94 @@
+package com.greenorange.promotion.light;
+
+public class CommandPatternExample {
+
+    // 命令接口
+    public interface Command {
+        void execute();
+    }
+
+    // 接收者类：开灯
+    public static class Light {
+        public void on() {
+            System.out.println("灯已开启");
+        }
+
+        public void off() {
+            System.out.println("灯已关闭");
+        }
+    }
+
+    // 接收者类：开电视
+    public static class TV {
+        public void on() {
+            System.out.println("电视已开启");
+        }
+
+        public void off() {
+            System.out.println("电视已关闭");
+        }
+    }
+
+    // 具体命令类：开灯命令
+    public static class LightOnCommand implements Command {
+        private Light light;
+
+        public LightOnCommand(Light light) {
+            this.light = light;
+        }
+
+        @Override
+        public void execute() {
+            light.on();  // 执行开灯操作
+        }
+    }
+
+    // 具体命令类：开电视命令
+    public static class TVOnCommand implements Command {
+        private TV tv;
+
+        public TVOnCommand(TV tv) {
+            this.tv = tv;
+        }
+
+        @Override
+        public void execute() {
+            tv.on();  // 执行开电视操作
+        }
+    }
+
+    // 调用者类：遥控器
+    public static class RemoteControl {
+        private Command command;
+
+        public void setCommand(Command command) {
+            this.command = command;
+        }
+
+        public void pressButton() {
+            command.execute();  // 执行命令
+        }
+    }
+
+    // 测试类：命令模式的客户端
+    public static void main(String[] args) {
+        // 创建接收者
+        Light light = new Light();
+        TV tv = new TV();
+
+        // 创建命令
+        Command lightOn = new LightOnCommand(light);
+        Command tvOn = new TVOnCommand(tv);
+
+        // 创建遥控器
+        RemoteControl remote = new RemoteControl();
+
+        // 开灯
+        remote.setCommand(lightOn);
+        remote.pressButton();  // 输出: 灯已开启
+
+        // 开电视
+        remote.setCommand(tvOn);
+        remote.pressButton();  // 输出: 电视已开启
+    }
+}