diff --git a/1-1.py b/1-1.py
index b27440b..4c12a5f 100644
--- a/1-1.py
+++ b/1-1.py
@@ -29,11 +29,13 @@ def parse_log_line(line):
 
 logFile = "hdfs://master:9000/user/root/apache.access.log.PROJECT"
 raw_logs = sc.textFile(logFile)
-access_logs = raw_logs.map(parse_log_line).filter(lambda x: x is not None).cache()
 
-# 加入一个保护，防止 access_logs 空时报错
-if access_logs.isEmpty():
-    print("日志文件为空或解析失败")
+parsed_logs = raw_logs.map(parse_log_line).filter(lambda x: x is not None)
+access_logs = parsed_logs.cache()
+
+# 判断是否为空 RDD（兼容性写法：count() == 0）
+if access_logs.count() == 0:
+    print("日志文件为空或格式不匹配")
 else:
     endpoint_counts = (access_logs
                        .map(lambda log: (log['endpoint'], 1))
@@ -42,7 +44,8 @@ else:
                        .take(10))
 
     print("Top 10 most visited endpoints:")
-    for endpoint, count in endpoint_counts:
-        print(f"{endpoint}: {count} hits")
+    for item in endpoint_counts:
+        endpoint, count = item[0], item[1]
+        print("{0}: {1} hits".format(endpoint, count))
 
 sc.stop()