1.簡介 
- read(filename) 讀取ini檔案內容 
- sections() 以列表形式展示所有的section 
- options(section) 展示該section的option 
- items(section) 得到該section的所有鍵值對 
- get(section,option) 得到section中option的值，返回為string型別 
- getint(section,option) 得到section中option的值，返回int型別，還有相應的getboolean()和getfloat()函式。 
2.動態寫入配置檔案 
- add_section(section) 新增一個新的section 
- set(section,option,value) 新增section中的option 

def writeIni():
    # 第一步：建立conf物件
    conf = configparser.ConfigParser()
    # 第二步：新增section、options的值
    conf.add_section("path")
    conf.set("path", "back_dir", "/Users/abc/PycharmProjects/Pythoncoding/projects/")  # option
    conf.set("path", "target_dir", "/Users/abc/PycharmProjects/Pythoncoding/")  # option
    conf.add_section("file")
    conf.set("file", "back_file", "apitest")
    conf.set("file", "num", "10")
    # 第三步：寫入檔案
    with open("path.ini", 'w')as conffile:
        conf.write(conffile)
 

執行以上程式碼，寫入配置檔案，生成一個path.ini配置檔案：

[path]
back_dir = /Users/abc/PycharmProjects/Pythoncoding/projects/
target_dir = /Users/abc/PycharmProjects/Pythoncoding/

[file]
back_file = apitest
num = 10

讀取配置檔案：

def readIni():
    config = configparser.ConfigParser()
    # 第四步：讀取配置檔案中的section、options的值
    # config.read_file(open('path.ini'))
    # 一開始是用上面的read_file讀取配置檔案的，但是配置檔案裡有中文
    # 讀取了之後出現編碼問題，執行出錯，故用下面的read函式讀取
    config.read('path.ini', encoding='UTF-8')
    back_dir = config.get('path', 'back_dir')
    back_file = config.get("file", "back_file")
    num = config.get("file", "num")
    target_dir = config.get("path", "target_dir")

    l1 = config.sections()

    print("back_dir = %s" % back_dir)
    print("back_file = %s" % back_file)
    print("num = %s" % num)
    print("target_dir = %s" % target_dir)

    print("l1 = %s" % l1)

    i = config.getint("file", "num")

    print("i = %s" % i)

    l2 = config.options("file")
    print("l2 = %s" % l2)

    l3 = config.items("file")
    print("l3 = %s" % l3)

    """ 輸出如下：
    back_dir = /Users/abc/PycharmProjects/Pythoncoding/projects/
    back_file = apitest
    num = 10
    target_dir = /Users/abc/PycharmProjects/Pythoncoding/
    l1 = ['path', 'file']
    i = 10
    l2 = ['back_file', 'num']
    l3 = [('back_file', 'apitest'), ('num', '10')]
    """
 

刪除section和option操作操作：

def remove_section():
    conf_path = "path.ini"
    config = configparser.ConfigParser()
    config.read(conf_path, encoding='UTF-8')
    # 刪除section是section1裡md5選項
    config.remove_option('section1', 'md5')
    # 刪除section是section2裡所有選項
    config.remove_section('section2')
    # 刪除後必須寫入檔案才有效
    with open(conf_path, 'w', encoding="UTF-8")as file:
        config.write(file)