diff --git a/list_key_finder.py b/list_key_finder.py
new file mode 100644
index 0000000..f80d8a7
--- /dev/null
+++ b/list_key_finder.py
@@ -0,0 +1,25 @@
+import re
+
+search = ["教学", "套路"]
+
+rf = open("result.txt", "w", encoding="gbk")
+
+with open("a.txt", "r", encoding="gbk") as f:
+    content = f.read(1 << 20)
+    result = re.findall(r"^(?P<title>[^\t\r\n]+)\t(?P<content>[^\t]+)\t(?P<aid>\d+)\t(?P<bvid>BV[^\t\r\n]+)$", content,
+                        re.MULTILINE)
+    for item in result:
+        title, content, aid, bvid = item
+        matched = []
+        for line in content.split("\n"):
+            for key in search:
+                if key in line:
+                    matched.append(line)
+        if len(matched) > 0:
+            rf.write("\n".join([
+                title,
+                *matched,
+                "",
+                "",
+            ]))
+rf.close()
\ No newline at end of file