Hunter的大杂烩

May 23, 2020

python 函数化编程例子

Filed under: 技术话题 — hunter @ 12:46 am

参考https://www.liaoxuefeng.com/wiki/1016959663602400/1017328525009056

一、map将传入的函数依次作用到序列的每个元素,并把结果作为新的Iterator返回,范例:


list_a=[1,3,5,1,2,3]
map(str, [1, 2, 3, 4, 5, 6, 7, 8, 9])
map(str, [item for item in list_a])   #循环将每个元素转换为字符串
[str(item) for item in list_a]             # 也可以简化成左边格式

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May 10, 2020

centos7.5 使用python3 selenium爬虫

Filed under: 技术话题 — hunter @ 10:14 pm

不要使用google-chrome-stable_current_x86_64.rpm,因为centos7.5仓库中的chromedriver是79的,而最新的google-chrome是80,两者匹配不起来

  1.  安装
    1.  yum install python3
    2. yum install chromedriver
    3. yum install chromium
    4. pip3 install selenium
  2. 测试程序

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April 22, 2020

安装 python的 Windows嵌入版本

Filed under: 技术话题 — hunter @ 10:17 pm

参考:https://dev.to/fpim/setting-up-python-s-windows-embeddable-distribution-properly-1081

 

理论上嵌入式版本不能单独作为运行环境,但是本人一向不喜欢安装.exe,怕环境被污染,参考网上一些文章之后,初步能运行起来,还未详细调试

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install v2ray at centos8

Filed under: 技术话题 — hunter @ 8:28 pm
  1. install dependencies
    1. yum install nginx
    2. yum install wget
  2. open firewall
    1. firewall-cmd –permanent –zone=public –add-port=http/tcp
    2. firewall-cmd –permanent –zone=public –add-port=https/tcp
    3. firewall-cmd –reload

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April 11, 2020

build php 5.6 in cenos 7

Filed under: 技术话题 — hunter @ 11:39 pm

LDFLAGS='-lfreetype' CFLAGS="-O3 -I/usr/include/freetype2" CXXFLAGS="-O3 -I/usr/include/freetype2" ./configure \
    --with-apxs2=/usr/local/httpd24/bin/apxs --prefix=/usr/local/php --with-zlib --with-gd \
    --enable-mbstring --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config\
    --with-pdo-mysql=/usr/local/mysql --with-config-file-path=/usr/local/php --with-iconv --with-libxml-dir --with-png-dir \
    --with-freetype-dir --with-openssl --with-curl

依赖项:

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