Ruby 中的简单高低游戏

发布于 2024-10-15 06:18:38 字数 1347 浏览 6 评论 0原文

我正在尝试编写一个简单的高低程序，其输出如下：

$ ./highlow.rb 
Please tell me the max value of the random number: 100
Ok. The random number is generated between 1 and 100.  
Make your guess: 50
That's too low.  Guess again: 75
That's too high.  Guess again: 63
That's too low.  Guess again: 68
Correct!  You guessed the answer in 4 tries!
Would you like to play again? no
OK. Goodbye.
$

这是我的代码，但我在某个地方出错了。它有时似乎有效：


count=0
play = true
while play = true 

print "Please tell me the max value of the random number: "
    max= gets.to_i
    num= rand(max)
puts "Ok. The random number is generated between 1 and " + max.to_s + 
"."
print "Make your guess: "
    guess=gets.to_i

    while guess != num && play != false 
        if guess > num
            print "That's too high. Guess again: "
            guess=gets.to_i
            count+=1
        end

        if guess < num
            print "That's too low. Guess again: "
            guess=gets.to_i
            count+=1
        else
            break
        end
end


提出“正确！您在“+ count.to_s +”尝试中猜到了答案！”
print "你想再玩一次吗？"

 answer=gets.chomp!
    如果答案=='n'
        播放=假
        休息
    结束

if 
    answer == 'y'
    play = true
end 


结束
放“好吧。再见”

有什么建议吗？我哪里出错了？

原文

I'm trying to write a simple high-low program that will output like this:

$ ./highlow.rb 
Please tell me the max value of the random number: 100
Ok. The random number is generated between 1 and 100.  
Make your guess: 50
That's too low.  Guess again: 75
That's too high.  Guess again: 63
That's too low.  Guess again: 68
Correct!  You guessed the answer in 4 tries!
Would you like to play again? no
OK. Goodbye.
$

This is the code I have, but I'm going wrong somewhere. It appears to work sometimes:


count=0
play = true
while play = true 

print "Please tell me the max value of the random number: "
    max= gets.to_i
    num= rand(max)
puts "Ok. The random number is generated between 1 and " + max.to_s + 
"."
print "Make your guess: "
    guess=gets.to_i

    while guess != num && play != false 
        if guess > num
            print "That's too high. Guess again: "
            guess=gets.to_i
            count+=1
        end

        if guess < num
            print "That's too low. Guess again: "
            guess=gets.to_i
            count+=1
        else
            break
        end
end

puts "Correct!  You guessed the answer in " + count.to_s + " tries!"

print "Would you like to play again? "
answer=gets.chomp!

    if answer  == 'n'

        play = false

        break

    end
if 
    answer == 'y'
    play = true
end 

end

puts "OK. Goodbye"


Any suggestions? Where am I going wrong?

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不寐倦长更 2024-10-22 06:18:38

我认为你的问题（无论如何我都能看到）是数字检查代码。

如果 guess 大于 num，则第一个 if 语句将执行，但第二个 if 语句将重定向到 else，从而跳出循环。

您需要使用 elsif。尝试将其更改为这样：

    if guess > num
        print "That's too high. Guess again: "
        guess=gets.to_i
        count+=1
    elsif guess < num
        print "That's too low. Guess again: "
        guess=gets.to_i
        count+=1
    else
        break
    end

I think your problem (the one I can see anyway) is with number checking code.

If guess is greater than num, then the first if statement will execute, but then the second one will redirect to the else, breaking out of the loop.

You need to use an elsif. Try changing it to this:

    if guess > num
        print "That's too high. Guess again: "
        guess=gets.to_i
        count+=1
    elsif guess < num
        print "That's too low. Guess again: "
        guess=gets.to_i
        count+=1
    else
        break
    end

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