diff --git a/.gitignore b/.gitignore
index 90da5ee..9be43b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@
 *.pkl
 *.mp3
 *.mp4
+*.csv
 .*
 
 test/
diff --git a/README.md b/README.md
index e801eee..5096293 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,10 @@
 ### MyShow: 玩点好玩的--知乎全部话题关系可视化
 
 ### python_markov_chain.py: 玩点好玩的--使用马尔可夫模型自动生成文章
+
+### python_wechat.py: 玩点好玩的--自己写一个微信小助手
+
+### python_csv.py: Python中CSV文件的简单读写
 ===================================================================================================
 
 ### 您可以fork该项目, 并在修改后提交Pull request
diff --git a/python_csv.py b/python_csv.py
new file mode 100644
index 0000000..dd70bb9
--- /dev/null
+++ b/python_csv.py
@@ -0,0 +1,43 @@
+# _*_ coding: utf-8 _*_
+
+"""
+python_csv.py by xianhu
+"""
+
+import csv
+import datetime
+
+# 数据
+data = [
+    [1, "a,bc", 19.353, datetime.datetime(2001, 3, 17)],
+    [2, "ei,f", 13.287, datetime.datetime(2011, 4, 27)],
+    [3, "q\"ij", 15.852, datetime.datetime(2003, 7, 14)],
+    [4, "zh'n", 11.937, datetime.datetime(2012, 1, 9)],
+    [5, "i\'op", 12.057, datetime.datetime(2009, 5, 18)],
+]
+
+# 写文件
+with open("test.csv", "w") as file:
+    writer = csv.writer(file, dialect="excel")
+    # writer.writerows(data)
+    for item in data:
+        writer.writerow(item)
+
+# 读文件
+with open("test.csv", "r") as file:
+    reader = csv.reader(file, dialect="excel")
+    for item in reader:
+        print(item)
+
+# 读文件
+with open("test.csv", "r") as file:
+    reader = csv.DictReader(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")
+    data = [item for item in reader]
+    print(data)
+
+# 写文件
+with open("test.csv", "w") as file:
+    writer = csv.DictWriter(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")
+    writer.writeheader()
+    for item in data:
+        writer.writerow(item)