修复了注册和登录时的验证码异常

src/test/java/com/greenorange/promotion/designModel/Client.java

@@ -0,0 +1,20 @@
+package com.greenorange.promotion.designModel;
+
+public class Client {
+    public static void main(String[] args) {
+
+        TestController testController = new TestController();
+
+        Light light = new Light();
+        TV tv = new TV();
+
+        LightOnCommand lightOnCommand = new LightOnCommand(light);
+        TVOnCommand tvOnCommand = new TVOnCommand(tv);
+
+        testController.setCommand(lightOnCommand);
+        testController.setCommand(tvOnCommand);
+    }
+
+
+
+}

src/test/java/com/greenorange/promotion/designModel/Command.java

@@ -0,0 +1,6 @@
+package com.greenorange.promotion.designModel;
+
+public interface Command {
+
+    void execute();
+}

src/test/java/com/greenorange/promotion/designModel/Controller.java

@@ -0,0 +1,4 @@
+package com.greenorange.promotion.designModel;
+
+public class Controller {
+}

src/test/java/com/greenorange/promotion/designModel/Light.java

@@ -0,0 +1,8 @@
+package com.greenorange.promotion.designModel;
+
+public class Light {
+
+    public void turnOn() {
+        System.out.println("灯已打开");
+    }
+}

src/test/java/com/greenorange/promotion/designModel/LightOnCommand.java

@@ -0,0 +1,15 @@
+package com.greenorange.promotion.designModel;
+
+public class LightOnCommand implements Command{
+
+    private Light light;
+
+    public LightOnCommand(Light light) {
+        this.light = light;
+    }
+
+    @Override
+    public void execute() {
+        light.turnOn();
+    }
+}

src/test/java/com/greenorange/promotion/designModel/TV.java

@@ -0,0 +1,8 @@
+package com.greenorange.promotion.designModel;
+
+public class TV {
+
+    public void turnOn() {
+        System.out.println("电视已打开");
+    }
+}

src/test/java/com/greenorange/promotion/designModel/TVOnCommand.java

@@ -0,0 +1,15 @@
+package com.greenorange.promotion.designModel;
+
+public class TVOnCommand implements Command{
+
+    private TV tv;
+
+    public TVOnCommand(TV tv) {
+        this.tv = tv;
+    }
+
+    @Override
+    public void execute() {
+        tv.turnOn();
+    }
+}

src/test/java/com/greenorange/promotion/designModel/TestController.java

@@ -0,0 +1,12 @@
+package com.greenorange.promotion.designModel;
+
+public class TestController {
+
+    private Command command;
+
+    public void setCommand(Command command) {
+        this.command = command;
+        command.execute();
+    }
+
+}

src/test/java/com/greenorange/promotion/factory/Computer.java

@@ -0,0 +1,6 @@
+package com.greenorange.promotion.factory;
+
+public interface Computer {
+
+    void turnOn();
+}

src/test/java/com/greenorange/promotion/factory/ComputerFactory.java

@@ -0,0 +1,7 @@
+package com.greenorange.promotion.factory;
+
+public abstract class ComputerFactory {
+
+    public abstract Computer createComputer();
+
+}

src/test/java/com/greenorange/promotion/factory/DellComputer.java

@@ -0,0 +1,9 @@
+package com.greenorange.promotion.factory;
+
+public class DellComputer implements Computer{
+
+    @Override
+    public void turnOn() {
+        System.out.println("戴尔电脑开机");
+    }
+}

src/test/java/com/greenorange/promotion/factory/DellFactory.java

@@ -0,0 +1,9 @@
+package com.greenorange.promotion.factory;
+
+public class DellFactory extends ComputerFactory{
+
+    @Override
+    public Computer createComputer() {
+        return new DellComputer();
+    }
+}

src/test/java/com/greenorange/promotion/factory/LenovoComputer.java

@@ -0,0 +1,9 @@
+package com.greenorange.promotion.factory;
+
+public class LenovoComputer implements Computer{
+
+    @Override
+    public void turnOn() {
+        System.out.println("联想电脑开机");
+    }
+}

src/test/java/com/greenorange/promotion/factory/LenovoFactory.java

@@ -0,0 +1,10 @@
+package com.greenorange.promotion.factory;
+
+public class LenovoFactory extends ComputerFactory {
+
+    @Override
+    public Computer createComputer() {
+        return new LenovoComputer();
+    }
+}
+

src/test/java/com/greenorange/promotion/factory/TestFactory.java

@@ -0,0 +1,19 @@
+package com.greenorange.promotion.factory;
+
+public class TestFactory {
+
+    public static void main(String[] args) {
+        DellFactory dellFactory = new DellFactory();
+        LenovoFactory lenovoFactory = new LenovoFactory();
+
+        Computer dellComputer = dellFactory.createComputer();
+        Computer lenovoComputer = lenovoFactory.createComputer();
+        dellComputer.turnOn();
+        lenovoComputer.turnOn();
+
+    }
+
+
+
+
+}