diff --git a/API_Reference.py b/API_Reference.py
index 8d3e0a5..f9423db 100644
--- a/API_Reference.py
+++ b/API_Reference.py
@@ -530,6 +530,9 @@ links = guan.get_links_from_pdf(pdf_path, link_starting_form='')
 # 将PDF文件转成文本
 content = guan.pdf_to_text(pdf_path)
 
+# 生成二维码
+guan.creat_qrcode(data="https://www.guanjihuan.com", filename='a', file_format='.png')
+
 # 将文本转成音频
 guan.str_to_audio(str='hello world', filename='str', rate=125, voice=1, read=1, save=0, compress=0, bitrate='16k', print_text=0)
 
diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index d043956..9933bbd 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.0.167
+version = 0.0.168
 author = guanjihuan
 author_email = guanjihuan@163.com
 description = An open source python package
diff --git a/PyPI/src/guan.egg-info/PKG-INFO b/PyPI/src/guan.egg-info/PKG-INFO
index 01c54a0..0ae3a0f 100644
--- a/PyPI/src/guan.egg-info/PKG-INFO
+++ b/PyPI/src/guan.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: guan
-Version: 0.0.167
+Version: 0.0.168
 Summary: An open source python package
 Home-page: https://py.guanjihuan.com
 Author: guanjihuan
diff --git a/PyPI/src/guan/__init__.py b/PyPI/src/guan/__init__.py
index 7d4c4be..9bf6147 100644
--- a/PyPI/src/guan/__init__.py
+++ b/PyPI/src/guan/__init__.py
@@ -2,7 +2,7 @@
 
 # With this package, you can calculate band structures, density of states, quantum transport and topological invariant of tight-binding models by invoking the functions you need. Other frequently used functions are also integrated in this package, such as file reading/writing, figure plotting, data processing.
 
-# The current version is guan-0.0.167, updated on April 06, 2023.
+# The current version is guan-0.0.168, updated on April 25, 2023.
 
 # Installation: pip install --upgrade guan
 
@@ -3184,6 +3184,16 @@ def pdf_to_text(pdf_path):
                     content  = content + x.get_text().strip()
     return content
 
+
+## image
+
+# 生成二维码
+def creat_qrcode(data="https://www.guanjihuan.com", filename='a', file_format='.png'):
+    import qrcode
+    img = qrcode.make(data)
+    img.save(filename+file_format)
+
+
 ## audio
 
 # 将文本转成音频