例子3：嵌套
效果图，判断是否富有与帅
1.png
代码如下：
read -p "Are you rich: " ANSWER
if [[ "$ANSWER" =~ [Y|y]([E|e][S|s])? ]];then
echo "OK!"
elif [[ "$ANSWER" =~ [N|n][O|o]? ]];then
read -p "Are you handsome: " ANSWER
if [[ "$ANSWER" =~ [Y|y]([E|e][S|s])? ]];then
echo "OK!"
elif [[ "$ANSWER" =~ [N|n][O|o]? ]];then
echo "work hard!"
fi
else echo "Your answer is wrong!"
fi
