diff --git a/w2/DataCleaner.java b/w2/DataCleaner.java
index 9171b53..53213f7 100644
--- a/w2/DataCleaner.java
+++ b/w2/DataCleaner.java
@@ -1,30 +1,22 @@
 public class DataCleaner {
     public static void main(String[] args) {
         int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
-        int validSum = 0; // 有效数据总和
-        int validCount = 0; // 有效数据个数
-
+        int validSum = 0; 
+        int validCount = 0;
         for (int num : sensorData) {
-            // 规则3：致命错误，遇到999终止流程
             if (num == 999) {
                 System.out.println("致命错误：传感器掉线，终止处理");
                 break;
             }
-
-            // 规则2：无效数据，跳过当前循环
             if (num <= 0 || (num > 100 && num != 999)) {
                 System.out.println("警告：发现越界数据[" + num + "]，已跳过");
                 continue;
             }
-
-            // 规则1：正常范围，计入有效数据
             if (num >= 1 && num <= 100) {
                 validSum += num;
                 validCount++;
             }
         }
-
-        // 规则4：最终输出
         if (validCount > 0) {
             double average = (double) validSum / validCount;
             System.out.println("有效数据平均值：" + average);