目录虚拟环境安装1、linux系统下安装1.需要安装依赖包2.配置virtualenv的系统环境变量3.修改~/.bashrc文件4.激活环境变量5.mkvirtualenv #创建虚拟环境6.切换虚拟环境7.退出虚拟环境：deactivate2、Windows安装虚拟环
i\'m using a php script for redirection after detecting the search word to my websiter from the search engines .
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