目录国内镜像源临时使用永久配置添加环境变量Path测试总结国内镜像源 pip如果不配置国内镜像源的话，下载包的速度非常慢，毕竟默认的源在国外呢，国内主要的镜像源有如下，其中我个人喜欢用阿里云的镜像源。
We have an application that logs using log4net. But we would like to delete the logfiles every 4 weeks (automatically).
加载中,请稍侯......