如下问题：  查看控制台：点击ctrl+`打开控制台  发现是因为http://packagecontrol.io/channel_v3.json 获取失败，手动下载channel_v3.json文件，下载地址：https://pan.baidu...

1.安装brewcaskinstalldocker或者官网下载https://docs.docker.com/get-docker/，点击下载，手动安装。2.版本docker--versionDockerversion19.03.8,buildafacb8b3.修改镜像源{"debug":true,"experimen...

原文链接：https://blog.csdn.net/weixin_42518879/article/details/83959319主要内容：机器学习中常见的几种评价指标，它们各自的含义和计算（注意本文针对二元分类器！）1、混淆矩阵TruePositive（真正，TP）：将正类预测为正类的数目TrueNegative...

原因：没有开启curl扩展 安装或者开启扩展 ubuntu执行安装Curl的扩展 sudoapt-getinstall-yphp-curl同：mysql,redis,curl,等。 转自：https://www.cnblogs.com/bing-yu12/p/7617028.ht...

转自：https://blog.csdn.net/yl2isoft/article/details/17059093 结果分析执行List的Clear方法和RemoveAll方法，List将清除指定元素，同时修改Count属性值，而Capacity属性值保持不变。Clear方法和RemoveAll方法的区别是...

准备两个表：--T1(2,3)--T2(1,2,3,4)--ALL,ANY,SOME的子查询-->ALL父查询中的结果集大于子查询中每一个结果集中的值,则为真SELECT*FROMT2WHEREN>ALL(SELECTNFROMT1) -->ANY,SOME父查询中的结果集大于子查询中任意一...

 1.firewalld的基本使用启动systemctlstartfirewalld关闭systemctlstopfirewalld查看状态systemctlstatusfirewalld开机禁用systemctldisablefirewalld开机启用systemctlenablefirewalld&nbs...

 sudoapt-getinstallros-indigo-map-server ...

 CMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackageconfigurationfileprovidedby"camera_info_manager"w...

 CMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackageconfigurationfileprovidedby"pcl_ros"withanyofthef...

 CMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackageconfigurationfileprovidedby"pcl_conversions"witha...

 CMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackageconfigurationfileprovidedby"map_msgs"withanyofthe...

 --Usingthesemessagegenerators:gencpp;genlisp;genpyCMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackag...

 CMakeWarningat/opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76(find_package):Couldnotfindapackageconfigurationfileprovidedby"filters"withanyofthef...

 sudoapt-getinstallros-indigo-tf2 ...