diff --git a/SmartAirConditioner.java b/SmartAirConditioner.java
new file mode 100644
index 0000000..84fb56c
--- /dev/null
+++ b/SmartAirConditioner.java
@@ -0,0 +1,95 @@
+/**
+ * 智能空调类
+ * 实现了SmartDevice, PowerControl和TemperatureControl接口
+ */
+public class SmartAirConditioner implements SmartDevice, PowerControl, TemperatureControl {
+    private String deviceId;
+    private String deviceName;
+    private boolean isPowerOn;
+    private double temperature;
+    private final double MIN_TEMP = 16.0;
+    private final double MAX_TEMP = 30.0;
+    
+    /**
+     * 构造函数
+     * @param deviceId 设备ID
+     * @param deviceName 设备名称
+     */
+    public SmartAirConditioner(String deviceId, String deviceName) {
+        this.deviceId = deviceId;
+        this.deviceName = deviceName;
+        this.isPowerOn = false;
+        this.temperature = 25.0; // 默认温度25度
+    }
+    
+    @Override
+    public String getDeviceId() {
+        return deviceId;
+    }
+    
+    @Override
+    public String getDeviceName() {
+        return deviceName;
+    }
+    
+    @Override
+    public String getDeviceType() {
+        return "AirConditioner";
+    }
+    
+    @Override
+    public String getStatusDescription() {
+        return deviceName + " (ID: " + deviceId + ") - 状态: " + 
+               (isPowerOn ? "开启" : "关闭") + ", 温度: " + temperature + "°C";
+    }
+    
+    @Override
+    public void turnOn() {
+        if (!isPowerOn) {
+            isPowerOn = true;
+            System.out.println(deviceName + " 已开启");
+        } else {
+            System.out.println(deviceName + " 已经是开启状态");
+        }
+    }
+    
+    @Override
+    public void turnOff() {
+        if (isPowerOn) {
+            isPowerOn = false;
+            System.out.println(deviceName + " 已关闭");
+        } else {
+            System.out.println(deviceName + " 已经是关闭状态");
+        }
+    }
+    
+    @Override
+    public boolean isPowerOn() {
+        return isPowerOn;
+    }
+    
+    @Override
+    public void setTemperature(double temperature) {
+        if (temperature >= MIN_TEMP && temperature <= MAX_TEMP) {
+            this.temperature = temperature;
+            System.out.println(deviceName + " 温度已设置为: " + temperature + "°C");
+        } else {
+            System.out.println(deviceName + " 温度必须在 " + MIN_TEMP + "-" + MAX_TEMP + "°C 之间");
+        }
+    }
+    
+    @Override
+    public double getTemperature() {
+        return temperature;
+    }
+    
+    @Override
+    public void increaseTemperature(double increment) {
+        setTemperature(this.temperature + increment);
+    }
+    
+    @Override
+    public void decreaseTemperature(double decrement) {
+        setTemperature(this.temperature - decrement);
+    }
+}
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