add-apt-repository命令不存在
apt install software-properties-common
add-apt-repository –remove ppa:webupd8team/java
apt install software-properties-common
add-apt-repository –remove ppa:webupd8team/java
gcc file.c -o file 在輸入以上命令時不能成功編譯 需要做以下修改: gcc file.c -o file -lm
sudo apt-get install p7zip-full sudo apt-get remove rar sudo apt-get install unrar
sudo apt-get install non-free-codecs gxineplugin