bash - 如果布尔条件为假，如何跳出循环

Question

嗨，伙计们，我要解决的问题是，即使您输入 no，while 循环在这两种情况下都可以工作，如果我输入 yes，第二个问题 echo 你想继续，它会在两种情况下都出现

echo would you like to provide  more numbers: 
read des

while [ "$des"=="yes" ];  do

    echo provide a number please:
    read num
    let x=3num+$num
    echo $x

    echo would you like to carry on 
    read new

    if [ "$new"=='no' ]; then
        break
    fi
done

Answer 1

要完成字符串比较，请添加空格：

代替

while [ "$des"=="yes" ];  do

写

while [ "$des" == "yes" ];  do

Answer 2

尝试这个：

如果 [ "$new" == "否" ]; 然后