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cn2linux

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草稿：Python函数放在列表 # Functions are first-class citizens in Python: # They can be passed as arguments to other functions, # returned as values from other functions, and
- 2023-12-16
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草稿：Python __repr__ 与 __str__ # When To Use __repr__ vs __str__? # Emulate what the std lib does: >>> import datetime >>> today = datetime.date.today() # Result of __str__ should
- 2023-12-16
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草稿：Python 容器数据类型 # collections.Counter lets you find the most common # elements in an iterable: >>> import collections >>> c = collections.Counter('helloworld') >>>
- 2023-12-16
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草稿： Squid正向代理 (基于MySQL验证) 快速安装相关服务 yum install mariadb-server squid -y yum install perl-DBD-mysql -y 创建配置数据库启动服务并设置开机自启动: sudo systemctl start mariadb sudo systemctl enable ma
- 2023-12-16
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草稿： JavaScript json转换对象 JSON转换JS对象 let obj = JSON.parse(json_obj)
- 2023-12-16
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草稿：Python 类变量与实例变量示例信息 class Student: name = "" age = 0 def __init__(self, name, age): self.name = name self.age = age def do_homework
- 2023-12-16
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草稿：Python switch/case 实现 def dispatch_if(operator, x, y): if operator == 'add': return x + y elif operator == 'sub': return x - y elif operator ==
- 2023-12-16
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草稿：Python 函数传入字典 # Python 3.5+ allows passing multiple sets # of keyword arguments ("kwargs") to a # function within a single call, using # the "**" syntax: >>> def p
- 2023-12-16
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草稿：Python 使用内置HTTP服务 Python3的启动方式 python3 -m http.server Python2的启动方式 python -m SimpleHTTPServer 8000 Python内置的http服务会将当前启动的目录设置为根服务器。
- 2023-12-16
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草稿：Python 多行字符串方法一 s1 = """Multi line strings can be put between triple quotes. It's not ideal when formatting your code though""" print (s1) 输出： Mu
- 2023-12-16
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