如何将命令行参数打印到文件

Question

我接受来自命令行的4个参数，并希望使用它在python中创建文件。

我的语法是：

def configuredhcp(self,**kwargs): 
       ''' Get the input parameters ''' 

       client_ip = kwargs.get('client_ip',None) 
       client_mask = kwargs.get('client_mask',None) 
       option_routers = kwargs.get('option_routers',None) 
       option_broadcast = kwargs.get('option_broadcast',None) 
       range_ip = kwargs.get('range_ip',None) 

       infile = open('dhcpconf.txt', 'r+') 
       infile.write("Subnet %s netmask %s " % (client_ip ,client_mask) 
       infile.write("option routers %s " % (option_routers) 
       infile.write("option broadcast-address %s; " % (option_broadcast) 
       infile.write(" range %s;" % (range_ip) 
       infile.close() 

我得到了行语法错误

infile.write（ “选项路由器％的” ％（option_routers）

Answer 1

你已经错过了')'在每次写入时加上大括号。试试这个： -

def configuredhcp(self, **kwargs): 
    ''' Get the input parameters ''' 

    client_ip = kwargs.get('client_ip', None) 
    client_mask = kwargs.get('client_mask', None) 
    option_routers = kwargs.get('option_routers', None) 
    option_broadcast = kwargs.get('option_broadcast', None) 
    range_ip = kwargs.get('range_ip', None) 

    infile = open('dhcpconf.txt', 'r+') 
    infile.write("Subnet %s netmask %s " % (client_ip, client_mask)) 
    infile.write("option routers %s " % (option_routers)) 
    infile.write("option broadcast-address %s; " % (option_broadcast)) 
    infile.write(" range %s;" % (range_ip)) 
    infile.close()