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"""Genetic Algorithmn Implementation
"""
#引入随机函数
import random

#定义基因遗传算法顶层接口
class GeneticAlgorithm(object):

    # 定义算法初始化
    def __init__(self, genetics):

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#!/bin/bash
   
#Modify this with your IP range
MY_IP_RANGE="192\.168\.1"

#You usually wouldn't have to modify this
PORT_BASE=5555

#List the devices on the screen for your viewing pleasure
adb devices

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1.屏蔽本地连接

ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1

run the command vim /etc/mysql/my.cnf.
comment bind-address = 127.0.0.1 using the # symbol.
restart your mysql server once.

2.远程访问权限

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nginx

To add NGINX yum repository, create a file named /etc/yum.repos.d/nginx.repo and paste one of the configurations below:

CentOS:

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

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#!/bin/sh
 
opkg update
for ipk in $(opkg list-upgradable | awk '$1!~/^kmod|^Multiple/{print $1}'); do
	opkg upgrade $ipk
done

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ubuntu如何卸载图形界面

方法

直接卸载界面

sudo apt-get remove unity

但是这样做依赖的包还在，而且万一以后要用到桌面又很麻烦了，不是很好的办法。

个人觉得比较好的办法是开机不进入图形界面而是直接进入命令行

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# Your init script
#
# Atom will evaluate this file each time a new window is opened. It is run
# after packages are loaded/activated and after the previous editor state
# has been restored.
#
# An example hack to log to the console when each text editor is saved.
#
# atom.workspace.observeTextEditors (editor) ->
#   editor.onDidSave ->

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U.S.S. Enterprise Space Cruiser

Summary:

THE VESSEL

美国企业号是宇宙飞船，官方名称是“星舰”。比现在的海军巡洋舰有点大，它是Starfleet服务中规模最大，最现代化的船只。它有一个430人的船员，其中约三分之一是女性。

The U.S.S. Enterprise is a spaceship, official designation "starship." Somewhat larger than a present-day naval cruiser, it is the largest and most modern type vessel in the Starfleet Service. It has a crew of 430 persons, approximately one-third of them female.

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Emoji表情

将对应emoji表情的符号码复制后输入你的markdown文本即可显示emoji表情。 如:blush:，显示为:blush:

人物

syntax	preview	syntax	preview	syntax	preview
:bowtie:		:smile:	😄	:laughing:	😆

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使用ffmpeg合并MP4文件

ffmpeg -i "Apache Sqoop Tutorial Part 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg -i "Apache Sqoop Tutorial Part 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
ffmpeg -i "Apache Sqoop Tutorial Part 3.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate3.ts
ffmpeg -i "Apache Sqoop Tutorial Part 4.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate4.ts
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts|intermediate3.ts|intermediate4.ts" -c copy -bsf:a aac_adtstoasc "Apache Sqoop Tutorial.mp4"