从其他类获取变量

Question

作为一个新手，我需要向你寻求一些帮助。我定义了Config类，它从config.ini文件中获取一些信息，并将它们放入变量中。现在我定义了class : Connection，它是Config类结果的基础。我尝试过很多方法，但最终还是放弃了。有人能看一眼吗？

class Config:
    def __init__(self,system):   
        self.config = configparser.ConfigParser()
        self.config.read("config.ini")
        self.connection_source=self.config.get(system,'Source')
        self.system=system

    def getsystemSources(self):
        return self.connection_source

    def getConnection(self,source):
        self.source=source
        self.connection_string=self.config.get('CONNECTION',self.system+'_'+source+'_'+'connectstring')   ## Connection
        self.connection_user=self.config.get('CONNECTION',self.system+'_'+source+'_'+'user')   ## Connection user
        self.connection_password=self.config.get('CONNECTION',self.system+'_'+source+'_'+'password')   ## Connection pass  

class Connection(Config):
    def __init__ (self):
        self.connection_string=Config.connection_string
        self.connection_user=Config.connection_user
        self.connection_password=Config.connection_user
        self.connection_source=Config.connection_source
    def conn_function(self):
        print (self.connection_string)
        print (self.connection_user)
        print (self.connection_password)

emp1 = Config('Windows')    
value=emp1.getsystemSources()   
print (value)   
emp2 = Connection()    -> how to run it ? 

Answer 1

您只需将配置对象传递给__init__函数

class Config:
    def __init__(self,system):   
        self.config = configparser.ConfigParser()
        self.config.read("config.ini")
        self.connection_source=self.config.get(system,'Source')
        self.getConnection(self.connection_source)
        self.system=system

class Connection(Config):
    def __init__ (self, system):
        Config.__init__(self, system)

emp1 = Connection('Windows')
emp1.conn_function()