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Python 1. Do you know python comprehensions? list comprehensions https://www.runoob.com/python3/python-comprehensions.html [表达式 for 变量 in 列表] [out_exp_res for out_exp in input_list] 2. Do you know python closure? https://github.com/Jwindler/Ice_story/blob/main/src/python/closure.md 闭包（closure）是一个函数对象，它与它的环境变量（包括自由变量）的引用组合而成的实体。 闭包可以保留函数定义时所在的...

soruce EAP This document defines the Extensible Authentication Protocol (EAP), an authentication framework which supports multiple authentication methods. EAP typically runs directly over data link layers such as Point-to-Point Protocol (PPP) or IEEE 802, without requiring IP. EAP (Extensible Authentication Protocol) provides its own supp...

soruce tc Tc is used to configure Traffic Control in the Linux kernel. Traffic Control consists of the following: SHAPING When traffic is shaped, its rate of transmission is under control. Shaping may be more than lowering the available bandwidth - it is also used to smooth out bur...

soruce soruce grep 零宽断言 grep高级用法——断言 先行断言 x(?=y) 当x的右边是y是匹配成功 后发断言 (?<=y)x 当x的左边是y时匹配成功 负向零宽先行断言 x(?!y) x右边不是y时匹配成功 负向零宽后发断言 (?<!y)x x左边不是y时匹配成功 需要使用-P选项 [root@liali-vm1 job_scheduler]# grep -P -o "(?<=SKIP_DRIVER\=\").*?(?=\")" -R list/ list/sriov.list:bnx2x list/sriov.list:igb list/sriov.list:bnx2x list/sriov.list:bnx2x list/s...

soruce 基本的装饰器 概括的讲，装饰器的作用就是为已经存在的函数或对象添加额外的功能。 def debug(func): def wrapper(*args, **kwargs): # 指定宇宙无敌参数 print "[DEBUG]: enter {}()".format(func.__name__) print 'Prepare and say...', return func(*args, **kwargs) return wrapper # 返回 @debug def say(something): print "hello {}!".format(something) 带参数的装饰...

soruce import 整个模块(需要使用前缀) # 导入sys整个模块 import sys # 使用sys模块名作为前缀来访问模块中的成员 print(sys.argv[0]) # 导入sys、os两个模块 import sys,os 设置别名(需要使用前缀) # 导入sys整个模块，并指定别名为s import sys as s # 使用s模块别名作为前缀来访问模块中的成员 print(s.argv[0]) # 导入sys、os两个模块，并为sys指定别名s，为os指定别名o import sys as s,os as o from xx import x1（无须使用任何前缀） # 导入sys模块的argv成员 from sys import argv # 使用...

soruce import import numpy as np # linear algebra import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv) import matplotlib.pyplot as plt import seaborn as sns from sklearn.preprocessing import LabelEncoder read file train = pd.read_csv("/kaggle/input/store-sales-time-series-forecasting/train.csv") test = pd.read_csv("/kaggle/...

soruce Tokenization Word-based:: Split a sentence on spaces, as well as applying language-specific rules to try to separate parts of meaning even when there are no spaces (such as turning “don’t” into “do n’t”). Generally, punctuation marks are also split into separate tokens. Subword based:: Split words into smaller parts, based on the most co...