这里我们用context manager (with语句)打开保存5台交换机管理IP的ip_list.txt文件,然后用for循环配合readlines()遍历里面的每一个ip,因为readlines()返回的列表里的每个元素后面都会接一个换行符\n,所以我们用strip()函数将其拿掉然后赋值给变量ip,这个变量ip则作为字典connection_info里'ip'这个键的值放入字典,这里...
states = list(capitals.keys()) random.shuffle(states) # ➍ # TODO: Loop through all 50 states, making a question for each. 测验的文件名将是capitalsquiz<N>.txt,其中<N>是来自quizNum``for循环计数器的测验的唯一数字。capitalsquiz<N>.txt的答案将被保存在一个名为capitalsquiz_answers<N>.txt...
JSON Lines:这是一种类似 JSON 的格式,其中每条记录的每行都是有效的 JSON 值。它也被称为换行符分隔的 JSON,即用换行符(\n)分隔的单独的 JSON 记录。处理大量数据时,JSON Lines 格式非常有用。 由于易于数据模式和代码可读性,JSON 或 JSON Lines 格式的数据源比 XML 更受青睐,这也可以通过最少的编程工作...
while game_engine.game_running: game_engine.main_loop() print("感谢游玩《生存挑战》!") 1. 2. 3. 4. 5. 6. 7. 8. 9. 关键功能详解 6.1 游戏初始化 在游戏初始化时,创建玩家,设定初始资源和背景。加载数据时可以使用JSON文件,使得任务和事件的管理更加灵活。 6.2 游戏主循环 游戏主循环负责处理玩...
如果使用enumerate函数,可以同时迭代一个list的下标和元素: """ To loop over a list, and retrieve both the index and the value of each item in the list prints: 0 dog 1 cat 2 mouse """ animals = ["dog", "cat", "mouse"] for i, value in enumerate(animals): ...
id:本端标识(设备 Loopback0 口 IP 地址) ip:接口 IP 地址 to_name:对端设备名 to_int:对端接口名 利用这种模板化的思路,我们可以通过替换不同的数据集来为各种设备生成定制化的配置脚本。 三、实验设计 3.1 实验拓扑 本实验重点在于模板文件生成配置命令,并非联机操作,请先关注拓扑关系信息。
This is a useful idiom: pass a generator to the list() function, and it will iterate through the entire generator (just like the for loop) and return a list of all the values. The for loop will automatically call the next() function to get values from the generator and assign them to...
To use the returned iterable object in your code, simply loop through it or use the next() builtin function:import jc result = jc.parse('ls_s', ls_command_output.splitlines()) for item in result: print(item["filename"])Parser Plugins...
debug ( 'This is output to the console' ) The huge advantage of the latter is that, with a single change to a setting on the logger instance, you can either show or hide all your debugging messages. This means you no longer have to go through the process of commenting and un...
Two classes and convenience functions are included which can be used to build applications which provide an interactive interpreter prompt.The codeop module provides utilities upon which the Python read-eval-print loop can be emulated, as is done in the code module. As a result, you probably ...