diff --git a/W2-王严笛-202506050329/DataCleaner.java b/W2-王严笛-202506050329/DataCleaner.java
new file mode 100644
index 0000000..7a71c23
--- /dev/null
+++ b/W2-王严笛-202506050329/DataCleaner.java
@@ -0,0 +1,28 @@
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+        int validSum = 0, validCount = 0;
+        boolean isTerminated = false;
+
+        for (int data : sensorData) {
+            if (data == 999) {
+                System.out.println("致命错误：传感器掉线，终止处理");
+                isTerminated = true;
+                break;
+            } else if (data <= 0 || data > 100) {
+                System.out.println("警告：发现越界数据[" + data + "]，已跳过");
+                continue;
+            } else {
+                validSum += data;
+                validCount++;
+            }
+        }
+
+        if (!isTerminated && validCount > 0) {
+            double average = (double) validSum / validCount;
+            System.out.println("有效数据的平均值为：" + average);
+        } else if (!isTerminated) {
+            System.out.println("无有效数据");
+        }
+    }
+}
diff --git a/W2-王严笛-202506050329/DataCleaner.md b/W2-王严笛-202506050329/DataCleaner.md
new file mode 100644
index 0000000..9081780
--- /dev/null
+++ b/W2-王严笛-202506050329/DataCleaner.md
@@ -0,0 +1,29 @@
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+        int validSum = 0, validCount = 0;
+        boolean isTerminated = false;
+
+        for (int data : sensorData) {
+            if (data == 999) {
+                System.out.println("致命错误：传感器掉线，终止处理");
+                isTerminated = true;
+                break;
+            } else if (data <= 0 || data > 100) {
+                System.out.println("警告：发现越界数据[" + data + "]，已跳过");
+                continue;
+            } else {
+                validSum += data;
+                validCount++;
+            }
+        }
+
+        if (!isTerminated && validCount > 0) {
+            double average = (double) validSum / validCount;
+            System.out.println("有效数据的平均值为：" + average);
+        } else if (!isTerminated) {
+            System.out.println("无有效数据");
+        }
+    }
+}
+
diff --git a/W2-王严笛-202506050329/错误处理.png b/W2-王严笛-202506050329/错误处理.png
new file mode 100644
index 0000000..ba3e765
Binary files /dev/null and b/W2-王严笛-202506050329/错误处理.png differ