diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9b20f26
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,93 @@
+# Created by .ignore support plugin (hsz.mobi)
+### Python template
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*,cover
+.hypothesis/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# dotenv
+.env
+
+# virtualenv
+.venv/
+venv/
+ENV/
+
+# Spyder project settings
+.spyderproject
+
+# Rope project settings
+.ropeproject
+.idea
diff --git a/README.md b/README.md
index fea29f4..62cc034 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,21 @@
-# JD_Spider_python是一个python抓取京东商城的爬虫，没有使用框架，主要使用了requests,BeautifulSoup,threading,time,mysql数据库存储
+`JD_Spider_python`是一个python抓取京东商城的爬虫，没有使用框架，主要使用了requests,BeautifulSoup,threading,time,mysql数据库存储
+
+# Usage
+
+## requirements
+
+```
+pip install requests
+pip install MySQL-python
+pip install beautifulsoup4
+```
+
+## db schema
+```
+CREATE DATABASE `jd_crawler` /*!40100 DEFAULT CHARACTER SET latin1 */;
+CREATE TABLE `JD` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `img_url` varchar(1024) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=142 DEFAULT CHARSET=latin1;
+```
diff --git a/SQL.py b/SQL.py
index d836a28..1742ed8 100644
--- a/SQL.py
+++ b/SQL.py
@@ -7,12 +7,12 @@ def __init__(self):
         self.user='root'
         self.password='root'
         self.host='localhost'
-        self.database='python'
+        self.database='jd_crawler'
     def get_connection(self):
-        return db.connect(user="root",passwd="root",host="localhost",db="python",charset="utf8")
+        return db.connect(user="root",passwd="root",host="127.0.0.1",port=3306,db="jd_crawler",charset="utf8")
 
     def save_img(self,url):
         conn=self.get_connection()
         cursor=conn.cursor()
-        cursor.execute("insert into JD(id,img_url) values(NULL,%s)",url)   #将img_url插入到数据库中
+        cursor.execute("insert into JD(img_url) values(%s)", [url])   #将img_url插入到数据库中
         conn.commit()