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+---
+title: "Python 的 ConfigParser 模块"
+date: 2019-10-30T18:04:09+08:00
+lastmod: 2019-10-30T18:04:09+08:00
+tags: ["python", "configparser"]
+categories: ["python"]
+---
+
+# 样例文件
+- 该类配置文件可以包含一个或多个节（section），每个节可以有多个参数（键=值）。
+- 样例配置文件（/proj/conf/example_conf）
+    ```
+    [book]
+    title:ConfigParser模块教程
+    author:大头爸爸
+    email:366500050@qq.com
+    time:2012-09-20 22:04:55
+    [size]
+    size:1024
+    [other]
+    blog:csdn.net
+    ```
+- 上面配置文件中用的是冒号，也可以用等号。
+
+# 读取配置文件
+- 示例文件: example.py
+    ```python
+    # -*- coding: utf-8 -*-
+    import ConfigParser
+    import string
+    config=ConfigParser.ConfigParser()
+    config.read(u'/proj/conf/example_conf')
+    print string.upper(config.get("book","title")),
+    print "by",config.get("book","author"),
+    print "("+config.get("book","email")+")"
+    print
+    print config.get("size","size")
+    print
+    print config.sections()
+    for section in config.sections():
+        print section
+        for option in config.options(section):
+            print " ",option,"=",config.get(section,option)
+    ```
+- example.py文件执行结果
+    ```
+    CONFIGPARSER模块教程 by 大头爸爸 (366500050@qq.com)
+    1024
+      ['book', 'size', 'other']
+    book
+      title = ConfigParser模块教程
+      author = 大头爸爸
+      email = 366500050@qq.com
+      time = 2012-09-20 22:04:55  size
+      size = 1024  other
+      blog = csdn.n
+    ```
+
+# 写入配置文件
+- 示例
+    ```python
+    import ConfigParser
+    import sys
+    config=ConfigParser.ConfigParser()
+    config.add_section("book")
+    config.set("book","title","这是标题")
+    config.set("book","author","大头爸爸")
+    config.add_section("size")
+    config.set("size","size",1024)
+    config.write(sys.stdout)
+    ```
+- 执行结果
+    ```
+    [book]
+    title = 这是标题
+    author = 大头爸爸
+    [size]
+    size = 1024
+    ```
+
+# ConfigParser方法
+- 创建ConfigParser实例
+    ```python
+    config=ConfigParser.ConfigParser()
+    ```
+- 返回配置文件中节序列
+    ```python
+    config.sections()
+    ```
+- 返回某个项目中的所有键的序列
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.options(section)
+    ```
+- 返回section节中，option的键值
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.get(section,option)
+    ```
+- 添加一个配置文件节点(str)
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.add_section(str)
+    ```
+- 设置section节点中，键名为option的值(val)
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.set(section,option,val)
+    ```
+- 读取配置文件
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.read(filename)
+    ```
+- 写入配置文件
+    ```python
+    config=ConfigParser.ConfigParser()
+    config.write(obj_file)
+    ```
+
+# 综合实例
+```python
+#coding=utf-8
+
+import ConfigParser
+
+def writeConfig(filename):
+    config = ConfigParser.ConfigParser()
+    # set db
+    section_name = 'db'
+    config.add_section( section_name )
+    config.set( section_name, 'dbname', 'MySQL')
+    config.set( section_name, 'host', '127.0.0.1')
+    config.set( section_name, 'port', '80')
+    config.set( section_name, 'password', '123456')
+    config.set( section_name, 'databasename', 'test')
+
+    # set app
+    section_name = 'app'
+    config.add_section( section_name )
+    config.set( section_name, 'loggerapp', '192.168.20.2')
+    config.set( section_name, 'reportapp', '192.168.20.3')
+
+    # write to file
+    config.write( open(filename, 'a') )
+
+def updateConfig(filename, section, **keyv):
+    config = ConfigParser.ConfigParser()
+    config.read(filename)
+    print config.sections()
+    for section in config.sections():
+        print "[",section,"]"
+        items = config.items(section)
+        for item in items:
+            print "\t",item[0]," = ",item[1]
+    print config.has_option("dbname", "MySQL")
+    print config.set("db", "dbname", "11")
+    print "..............."
+    for key in keyv:
+        print "\t",key," = ", keyv[key]
+    config.write( open(filename, 'r+') )
+
+if __name__ == '__main__':
+    file_name = 'test.ini'
+    writeConfig(file_name)
+    updateConfig(file_name, 'app', reportapp = '192.168.100.100')
+    print "end__"
+```
+