kinggang2017的博客

source linker: https://www.cnblogs.com/bing-yu12/p/6367894.html解决方案：其实这是因为有另外一个程序在运行，导致锁不可用。原因可能是上次运行更新或安装没有正常完成。解决办法是杀死此进程sudo rm /var/cache/apt/archives/locksudo rm /var/lib/dpkg/lock

1、在terminal中输入以下命令来删除密钥文件：rm -f ~/.gnome2/keyrings/login.keyring当你打开某个程序的时候，会提示你输入新的密码，输入即可。2、打开Seahorse，切换到Passwords标签，右击Passwords：login，选择Change Password选项，输入旧密码和新密码。

转自：https://www.cnblogs.com/zhaoyl/archive/2012/12/14/2818428.htmlcat before.txt　　输出:　　This is a line to be deleted　　This is a line that will be changed　　This is a line that will be unchanged　　cat afte...

点击右上角那个A的标志进行切换。

https://stackoverflow.com/questions/53137834/modulenotfounderror-no-module-named-pyqt5-qtwebenginewidgetshttps://stackoverflow.com/questions/51154871/python-3-7-0-no-module-named-pyqt5-qtwebenginewi...

运行命令：rm ~/.local/share/zeitgeist -R重新打开gedit就好了。

https://blog.youkuaiyun.com/alvin93/article/details/80823065https://github.com/opencv/opencv/issues/7970cmake 选项加上：-DWITH_LAPACK=OFF

1.下载opencv源码包wget https://github.com/opencv/opencv/archive/3.2.0.zipwget https://github.com/opencv/opencv_contrib/archive/3.2.0.zip解压opencv-3.2.0，然后将opencv_contrib解压出来，并重命名为opencv_contrib，放到openc...

https://tex.stackexchange.com/questions/122314/figures-what-is-the-difference-between-using-subfig-or-subfigurehttps://www.zhihu.com/question/65823887