Question

我试图编写一个程序，程序会问你你的名字，确认你想要这个名字，然后查看你是否说是。我有＆＃34;不＆＃34;循环工作，它会再次要求一个名字，但是我试图在一个循环中，如果你输入除了是或否之外的任何东西，它会说＆＃34;请输入是或否。＆＃34;然后询问您是否要确认您的姓名，然后再次检查答案。这是我拥有的。

echo -e $WHITE"Name your$GREEN Hero$WHITE."
read HERO
clear
echo -e "Are you sure you want your$GREEN Hero$WHITE's name to be$GREEN "$HERO"$WHITE? y/n"
read ANSWER1
while [ $ANSWER1 = "no" ]; do
#
#
#
clear
echo -e $WHITE"Name your$GREEN Hero$WHITE."
read HERO
clear
echo -e "Are you sure you want your$GREEN Hero$WHITE's name to be$GREEN "$HERO"$WHITE? y/n"
read ANSWER1
done
   while [ $ANSWER1 != "yes" ] || [ $ANSWER1 != "no" ]; do
#
#
#
   clear
   echo -e $WHITE"Please type yes or no."
   sleep 1.5
   clear
   echo -e $WHITE"Are you sure you want your$GREEN Hero$WHITE's name to be$GREEN "$HERO"$WHITE?"
   read ANSWER1
   clear
   done
clear
echo -e -n $WHITE"Loading"
sleep 1.5
echo -e -n "."
sleep 1.5
echo -e -n "."
sleep 1.5
echo -e -n "."
sleep 1.5
clear
echo -e "Done."

如果我通过＆＃34;请输入是或否。＆＃34;它会在睡眠时冻结而不清晰，因此不会显示回声并继续循环。任何帮助或建议将不胜感激！

Answer 1

问题在于：

while [ $ANSWER1 != "yes" ] || [ $ANSWER1 != "no" ]; do

每个可能的答案至少与其中一个答案不同。没有字符串同时等于yes和no。您需要&&而不是||。

Answer 2

编写循环以获取用户输入的更简单方法是select命令：

while true; do
    read -p "${white}Name your ${green}Hero$white: " hero

    echo "Are you sure you want your ${green}Hero$white's name to be $green\"$hero\"$white? "
    select ans in Yes No; do
        case $ans in
            Yes) break 2 ;;   # break out of both select and while loops
            No)  break   ;;   # only break out of select loop
        esac
    done
done

echo "Your ${green}Hero$white's name is $green\"$hero\"$white."

Bash：虽然循环错误

2 个答案: