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'''
Explanation at
https://drive.google.com/open?id=1gDRoulcbWfh-T6KBLwvV8g_xb7dT3Erx
'''

from sage.all import *

mod = 2**128
h0 = 144066263297769815596495629667062367629
g = 2**88 + 315

rayepeng

In [7]: re.findall(r'(?i)yes', "Yes,yeS,yes")
Out[7]: ['Yes', 'yeS', 'yes']

rayepeng

#!/usr/bin/python
# coding: utf-8
from __future__ import print_function
import sys,os

#declare -A lcasekey
lcasekey = {}
#declare -A ucasekey
ucasekey = {}

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import cv2
import re

img_ = cv2.imread('./mistery_picture.bmp')
mi_ = ''.join([str(x) for x in (img_ % 2).reshape(-1)])
for off_ in range(8):
    mi_1 = mi_[off_:]
    xxx = (''.join([chr(int(mi_1[8*i:8*(i+1)][::-1], 2)) for i in range(len(mi_1) // 8)]))
    print(re.findall('(Iron[\s\S]{,66})', xxx))

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In [1]: import numpy as np

In [2]: arr = np.array([1,2,3,4,5,6])

In [3]: arr = arr.reshape(2,1,3)

In [4]: arr
Out[4]:
array([[[1, 2, 3]],

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def get_img_name(img_dir, format="jpg"):
    """
    获取文件夹下format格式的文件名
    :param img_dir: str
    :param format: str
    :return: list
    """
    file_names = os.listdir(img_dir) # 列出当前目录下所有文件
    # 使用 list(filter(lambda())) 筛选出 jpg 后缀的文件
    img_names = list(filter(lambda x: x.endswith(format), file_names))

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# 调用join表示自身优先执行


import threading
#定义线程要调用的方法，*add可接收多个以非关键字方式传入的参数
def action(*add):
    for arc in add:
        #调用 getName() 方法获取当前执行该程序的线程名
        print(threading.current_thread().getName() +" "+ arc)
#定义为线程方法传入的参数

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import requests
from concurrent.futures import ThreadPoolExecutor, as_completed

pool = ThreadPoolExecutor(3)
task_list = set()

targets = [
	'http://xxx',
	'http://xxx',
	'http://xxx'

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# 更新源

yum update -y
yum upgrade -y

yum install glibc.i686 libstdc++.i686 libcurl.i686 vim screen -y

useradd steam 
su steam
cd ~

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useradd steam
passwd steam


# 修改 /etc/sudoers 文件

chmod u+w /etc/sudoers

'''
即执行：vi /etc/sudoers