~/.bashrc settings (prompt style & color setting)

"prompt style & color setting"
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\[\033[31m\]\u\[\033[00m\]:\W\[\033[31m\]\$\[\033[00m\] '
{
\[\033[31m\]：Red
\[\033[00m\]：end of color setting
}