diff --git a/q1/main.py b/q1/main.py
new file mode 100644
index 0000000..473725d
--- /dev/null
+++ b/q1/main.py
@@ -0,0 +1,38 @@
+import json
+
+def analyze_log(filepath: str) -> dict:
+    result = {
+        "total": 0,
+        "by_level": {},
+        "by_user": {},
+        "last_error": None
+    }
+    try:
+        with open(filepath, 'r', encoding='utf-8') as f:
+            for line in f:
+                line = line.strip()
+                if not line:
+                    continue
+                try:
+                    log_data = json.loads(line)
+                except json.JSONDecodeError:
+                    continue
+                result["total"] += 1
+                level = log_data.get("level")
+                if level:
+                    result["by_level"][level] = result["by_level"].get(level, 0) + 1
+                user = log_data.get("user")
+                if user:
+                    result["by_user"][user] = result["by_user"].get(user, 0) + 1
+                if level == "ERROR":
+                    result["last_error"] = log_data.get("message")
+    except FileNotFoundError:
+        pass
+    return result
+
+
+if __name__ == "__main__":
+    
+    res = analyze_log("app.jsonl")
+    print(res)
+     print("成功")
\ No newline at end of file