diff --git a/jimchenhub/0000/add-number-on-picture-OpenCV.py b/jimchenhub/0000/add-number-on-picture-OpenCV.py
new file mode 100644
index 00000000..166c4d06
--- /dev/null
+++ b/jimchenhub/0000/add-number-on-picture-OpenCV.py
@@ -0,0 +1,10 @@
+#-*- coding:utf8 -*-
+import cv2
+import numpy as np
+
+img = cv2.imread("./head.jpg")
+height, width = img.shape[0], img.shape[1]
+font=cv2.FONT_HERSHEY_SIMPLEX
+cv2.putText(img,'4',(width - 40, 40), font, 1,(0, 0, 255),2)
+
+cv2.imwrite("target.jpg", img)
\ No newline at end of file
diff --git a/jimchenhub/0000/add-number-on-picture-PIL.py b/jimchenhub/0000/add-number-on-picture-PIL.py
new file mode 100644
index 00000000..2b3b3ea4
--- /dev/null
+++ b/jimchenhub/0000/add-number-on-picture-PIL.py
@@ -0,0 +1,17 @@
+#-*- coding:utf8 -*-
+import PIL
+from PIL import Image
+from PIL import ImageDraw
+
+# get the image
+file = "head.jpg"
+img = Image.open(file)
+width, height = img.size[0], img.size[1]
+print width, height
+# Draw the image
+draw = ImageDraw.Draw(img)
+draw.text((width - 20, 20), "4", (255, 0, 0))
+del draw
+
+# save the image 
+img.save("target.jpg")
\ No newline at end of file
diff --git a/jimchenhub/0000/head.jpg b/jimchenhub/0000/head.jpg
new file mode 100644
index 00000000..f8b133cc
Binary files /dev/null and b/jimchenhub/0000/head.jpg differ
diff --git a/jimchenhub/0000/target.jpg b/jimchenhub/0000/target.jpg
new file mode 100644
index 00000000..ae059965
Binary files /dev/null and b/jimchenhub/0000/target.jpg differ
diff --git a/jimchenhub/0001/coupon_code.py b/jimchenhub/0001/coupon_code.py
new file mode 100644
index 00000000..5b022e94
--- /dev/null
+++ b/jimchenhub/0001/coupon_code.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+#-*- encoding:utf-8 -*-
+'''
+生成长度为10的唯一优惠码，由数字和字母组成
+id + L + 随机码
+'''
+import random
+import string
+
+def generate_code(id, length=10):
+    prefix = hex(int(id))[2:] + "L"
+    length = length - len(prefix)
+    chars=string.ascii_letters+string.digits
+    return prefix + ''.join([random.choice(chars) for i in range(length)])
+def main():
+    for i in range(20):
+        code = generate_code(i)
+        print code
+
+if __name__=="__main__":
+    main()
\ No newline at end of file
diff --git a/jimchenhub/0002/coupon.txt b/jimchenhub/0002/coupon.txt
new file mode 100644
index 00000000..6da3663c
--- /dev/null
+++ b/jimchenhub/0002/coupon.txt
@@ -0,0 +1,20 @@
+0L2IFj2oMm
+1LwfzIE95r
+2LfT3vChTl
+3L5YkbNQMw
+4LPHA8kegU
+5LN68DBVlX
+6LLwRFIxrM
+7L6a71Sd1h
+8LGBuAjL4D
+9Lk7yYjFok
+aLcpxO3DtU
+bLynaJ8QOE
+cLsFI8pD3a
+dLcmdyFKle
+eLr45vcdKl
+fLLCUwWOqf
+10LYxg37Rr
+11LHlWDPBB
+12L7NJ3y8Z
+13LcD7JDzN
\ No newline at end of file
diff --git a/jimchenhub/0002/coupon_code_mysql.py b/jimchenhub/0002/coupon_code_mysql.py
new file mode 100644
index 00000000..cbc94053
--- /dev/null
+++ b/jimchenhub/0002/coupon_code_mysql.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+#-*- encoding:utf-8 -*-
+'''
+save coupon code into mysql database
+'''
+import random
+import string
+import MySQLdb
+
+config = {
+    "host":'localhost',
+    "port" : 3306,
+    "user":'root',
+    "passwd":'jim',
+    "db" :'python'
+    }
+
+class Save_to_mysql:
+    def __init__(self, code_file, config):
+        self.code_file = code_file
+        self.config = config
+
+    def connect_db(self):
+        try:
+            conn= MySQLdb.connect(host=self.config["host"], port=self.config["port"], user=self.config["user"], passwd=self.config["passwd"], db=self.config["db"])
+        except MySQLdb.Error, e:
+            try:  
+                sqlError =  "Error %d:%s" % (e.args[0], e.args[1]) 
+                print sqlError 
+            except IndexError:  
+                print "MySQL Error:%s" % str(e) 
+        self.conn = conn
+        self.cur = conn.cursor()
+
+    def save_code_into_db(self):
+        f = open("./coupon.txt")
+        for code in f:
+            print code
+            sql = "insert into coupon_code(code) values('"+code+"')"
+            print sql
+            try:
+                self.cur.execute(sql)
+            except MySQLdb.Error, e:
+                try:
+                    sqlError =  "Error %d:%s" % (e.args[0], e.args[1]) 
+                    print sqlError 
+                except IndexError:  
+                    print "MySQL Error:%s" % str(e)
+        f.close()
+        self.cur.close()
+        self.conn.commit()
+    def close_all(self):
+        self.conn.close()
+
+def main():
+    code_file = "./coupon.txt"
+    mysql = Save_to_mysql(code_file, config)
+    mysql.connect_db()
+    mysql.save_code_into_db()
+    mysql.close_all()
+
+if __name__=="__main__":
+    main()
\ No newline at end of file
diff --git a/jimchenhub/0003/coupon.txt b/jimchenhub/0003/coupon.txt
new file mode 100644
index 00000000..6da3663c
--- /dev/null
+++ b/jimchenhub/0003/coupon.txt
@@ -0,0 +1,20 @@
+0L2IFj2oMm
+1LwfzIE95r
+2LfT3vChTl
+3L5YkbNQMw
+4LPHA8kegU
+5LN68DBVlX
+6LLwRFIxrM
+7L6a71Sd1h
+8LGBuAjL4D
+9Lk7yYjFok
+aLcpxO3DtU
+bLynaJ8QOE
+cLsFI8pD3a
+dLcmdyFKle
+eLr45vcdKl
+fLLCUwWOqf
+10LYxg37Rr
+11LHlWDPBB
+12L7NJ3y8Z
+13LcD7JDzN
\ No newline at end of file
diff --git a/jimchenhub/0003/coupon_code_redis.py b/jimchenhub/0003/coupon_code_redis.py
new file mode 100644
index 00000000..a2d6d165
--- /dev/null
+++ b/jimchenhub/0003/coupon_code_redis.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+#-*- encoding:utf-8 -*-
+'''
+save coupon code into redis
+'''
+import redis
+
+config = {
+    "host":'localhost', 
+    "port":6379, 
+    "db":0
+    }
+
+class Save_to_redis:
+    def __init__(self, code_file, config):
+        self.code_file = code_file
+        self.config = config
+
+    def connect_db(self):
+        self.r = redis.Redis(host=self.config["host"], port = self.config["port"], db=self.config["db"])
+
+    def save_code_to_redis(self):
+        f = open("./coupon.txt")
+        for code in f:
+            code = code.strip('\n')
+            self.r.rpush("coupon_list", code)
+        f.close()
+
+    def show_code_list(self):
+        print self.r.lrange("coupon_list", 0, -1)
+
+    def cleanup(self):
+        while self.r.llen("coupon_list") :
+            self.r.lpop("coupon_list")
+
+def main():
+    code_file = "./coupon.txt"
+    redis = Save_to_redis(code_file, config)
+    redis.connect_db()
+    redis.save_code_to_redis()
+    redis.show_code_list()
+    redis.cleanup()
+
+if __name__=="__main__":
+    main()
\ No newline at end of file
diff --git a/jimchenhub/0003/dump.rdb b/jimchenhub/0003/dump.rdb
new file mode 100644
index 00000000..56af04ea
--- /dev/null
+++ b/jimchenhub/0003/dump.rdb
@@ -0,0 +1 @@
+REDIS0006�ܳC�Z��V
\ No newline at end of file
diff --git a/jimchenhub/0004/content.txt b/jimchenhub/0004/content.txt
new file mode 100644
index 00000000..31e2164b
--- /dev/null
+++ b/jimchenhub/0004/content.txt
@@ -0,0 +1,2 @@
+one two three.
+four
\ No newline at end of file
diff --git a/jimchenhub/0004/count_words.py b/jimchenhub/0004/count_words.py
new file mode 100644
index 00000000..1167e45b
--- /dev/null
+++ b/jimchenhub/0004/count_words.py
@@ -0,0 +1,14 @@
+#! /usr/bin/env python
+#-*- encoding: utf-8 -*-
+
+import re
+
+def count_words_num(file_name):
+    f = open(file_name, "rb")
+    content = f.read()
+    words = re.findall(r"[a-zA-Z0-9]+", content)
+    return len(words)
+
+if __name__=='__main__':
+    file_name = "./content.txt"
+    print count_words_num(file_name)
\ No newline at end of file
diff --git a/jimchenhub/0005/change_image_size.py b/jimchenhub/0005/change_image_size.py
new file mode 100644
index 00000000..24966faa
--- /dev/null
+++ b/jimchenhub/0005/change_image_size.py
@@ -0,0 +1,17 @@
+#! /usr/bin/env python
+#-*- encoding: utf-8 -*-
+
+import cv2
+import numpy as np
+
+# static value for iphone 5
+I5_WIDTH = 640.0
+I5_HEIGHT = 1136.0
+#get basic value for calculate zooming rate
+img = cv2.imread("./head.jpg")
+height, width = img.shape[0], img.shape[1]
+zoomR = max(I5_WIDTH/width, I5_HEIGHT/height)
+# resize the image
+target = cv2.resize(img,(width/zoomR,height/zoomR),interpolation=cv2.INTER_CUBIC)
+#save target image
+cv2.imwrite("target.jpg", target)
\ No newline at end of file
diff --git a/jimchenhub/0005/head.jpg b/jimchenhub/0005/head.jpg
new file mode 100644
index 00000000..f8b133cc
Binary files /dev/null and b/jimchenhub/0005/head.jpg differ
diff --git a/jimchenhub/0008/find_text.py b/jimchenhub/0008/find_text.py
new file mode 100644
index 00000000..275bc6d6
--- /dev/null
+++ b/jimchenhub/0008/find_text.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+#-*- encoding: utf-8 -*-
+'''
+0008:一个HTML文件，找出里面的正文。
+'''
+import urllib2
+from bs4 import BeautifulSoup
+
+def find_text_in_html(url):
+    content = urllib2.urlopen(url).read()
+    soup = BeautifulSoup(content, "html.parser")
+    for string in soup.stripped_strings:
+        print string
+
+if __name__=="__main__":
+    url = "https://github.com/Yixiaohan/show-me-the-code"
+    find_text_in_html(url)
\ No newline at end of file
diff --git a/jimchenhub/0009/find_text.py b/jimchenhub/0009/find_text.py
new file mode 100644
index 00000000..11d3fc83
--- /dev/null
+++ b/jimchenhub/0009/find_text.py
@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+#-*- encoding: utf-8 -*-
+'''
+0009:一个HTML文件，找出里面的链接。
+'''
+import urllib2
+from bs4 import BeautifulSoup
+
+def show_href(url):
+    content = urllib2.urlopen(url).read()
+
+    soup = BeautifulSoup(content, "html.parser")
+    for tag in  soup.find_all('a'):
+        print tag['href']
+
+
+if __name__ == '__main__':
+    show_href('https://github.com/Yixiaohan/show-me-the-code')