Chao-Bin Zhang
Linux Directories Structure
/bin : environmental variables
/etc : configuration (profile)
/mmt : 临时文件挂载点
echo $PATH : show the environmental variables path
vim + filename : open file with vim
grub : create executive files
cat host :
.. : up to the last directory
. : current directory
cp : copy
mv : move
chmod :
man + command : manual of the command
Qt useful widgets
qt状态机
fader widget
设计模式->单例模式
类和对象的概念
127.0.01
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