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 
![富有与帅.png](https://upload-images.jianshu.io/upload_images/10967676-cf3e4b0f66abe767.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)