diff --git a/X.py b/X.py
index 1ffd621..88011f8 100644
--- a/X.py
+++ b/X.py
@@ -1,17 +1,18 @@
-from lxml import etree
-html="""
-<body>
-  <div>
-    <h1>Page Title</h1>
-    <p>Some text.</p>
-    <h2>Section 1</h2>
-    <p>More text.</p>
-    <h2>Section 2</h2>
-  </div>
-</body>
-"""
-from lxml import etree
-selector = etree.HTML(html)
-#修改xpath表达式
-result = selector.xpath('//h2')
-print(result)
+from lxml import etree
+html="""
+<body>
+  <div>
+    <h1>Page Title</h1>
+    <p>Some text.</p>
+    <h2>Section 1</h2>
+    <p>More text.</p>
+    <h2>Section 2</h2>
+  </div>
+</body>
+"""
+from lxml import etree
+selector = etree.HTML(html)
+#修改xpath表达式
+result = selector.xpath('//h2')
+print(result)
+printf(selector)
\ No newline at end of file
