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Bash - 在某些参数内更大和更低

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Bash - 在某些参数内更大和更低

我正在开发一个简单的随机数猜测游戏，但我遇到了一些困难。核心游戏正在运行，但我想要更多。例如，如果您距离随机数在 10 以内（更高或更低），您会收到一条不同的消息。

#!/bin/bash

name=Jack

num=$(( 1+$RANDOM%101 ))
echo $num

target=$num
goes=0

until [[ $guess -eq $target ]]
do
    goes=$(( $goes+1 ))
    echo "Guess $goes. Enter a number between 0 and 100"
    read guess


    if [[ $((number - $guess)) -gt 10 ]] 
    then
        echo "Too low"

    elif [[ $((guess - $number)) -gt 10 ]]
    then
        echo "Too high"


    elif [[ $(($number - $guess)) -le 10 ]] 
    then 
        echo "You are within ten"

    elif [[ $(($guess - $low)) -le 10 ]] || 
    then
        echo "You are within ten"

    fi
done

echo "Well done $name, it took $goes goes to guess $num"

任何帮助将不胜感激

答案1

更改您的第一个语句并将最后一部分添加为您的elif语句：

if [[ $((number - $guess)) -gt 10 ]] 
then
    echo "Too low"

elif [[ $((guess - $number)) -gt 10 ]]
then
    echo "Too high"


elif [[ $(($number - $guess)) -le 10 ]] 
then 
    echo "You are within ten but too low"

elif [[ $(($guess - $number)) -le 10 ]]
then
    echo "You are within ten but too high"
fi

答案2

#!/bin/bash

number=$(( 1 + (RANDOM%100) ))    # random number [1,100]

while read -p 'Guess: '; do
        [[ $REPLY == *[![:digit:]]* ]] && continue

        if [[ REPLY -eq number ]]; then
                echo Correct
                break
        elif [[ REPLY -gt number ]]; then
                too=large
                delta=$(( REPLY - number ))
        else
                too=small
                delta=$(( number - REPLY ))
        fi

        if [[ delta -le 10 ]]; then
                close=' (but close)'
        else
                close=
        fi

        printf 'No, too %s%s\n' "$too" "$close"
done

实现简单的输入验证（忽略包含非数字的输入），计算给定的猜测是否太大或太小，以及猜测与正确答案之间的差异为delta。使用干原则，根据猜测是否太大或太小以及错误的大小，将变量too和设置close为适当的字符串，最后在让用户重试之前打印一条消息。

游戏通过正确的猜测、或者用户按下Ctrl+D以表示输入结束、或者Ctrl+C简单地中断脚本来终止。

玩上述游戏的脚本。该脚本假定上述脚本guessinggame在当前目录中可用。

#!/bin/bash

coproc bash guessinggame

make_guess () {
        printf 'Guessing %d\n' "$1"
        printf '%s\n' "$1" >&${COPROC[1]}
}

guess=50        # initial guess
change=25       # next guess this much higher/lower

make_guess "$guess"
tries=1

while read; do
        printf 'Game says "%s"\n' "$REPLY"

        if [[ $REPLY == 'Correct' ]]; then
                break
        fi

        if [[ $REPLY == *close* ]] && [[ change -gt 10 ]]; then
                # Close call, do not change too much in next guess!
                change=10
        fi

        if [[ $REPLY == *small* ]]; then
                guess=$(( guess + change ))
        else
                guess=$(( guess - change ))
        fi

        change=$(( change / 2 ))
        [[ change -eq 0 ]] && change=1

        make_guess "$guess"
        tries=$(( tries + 1 ))
done <&${COPROC[0]}

printf 'Guessed correctly after %d tries\n' "$tries"

运行示例：

$ bash guesser
Guessing 50
Game says "No, too large"
Guessing 25
Game says "No, too large (but close)"
Guessing 15
Game says "No, too small (but close)"
Guessing 20
Game says "No, too small (but close)"
Guessing 22
Game says "Correct"
Guessed correctly after 5 tries

答案3

数学就是解决方案:) ..请检查以下代码：

#!/bin/bash

name=Jack

number=$(( 1+$RANDOM%101 ))
echo $number

target=$number
goes=0

until [[ $guess -eq $target ]]
do
    goes=$(( $goes+1 ))
    echo "Guess $goes. Enter a number between 0 and 100"
    read guess

    if [[ $((number - guess)) -eq 0 ]]; then break; fi

    if [[ $((number - guess)) -gt 10 ]] 
    then
        echo "Too low"

    elif [[ $((guess - number)) -gt 10 ]]
    then
        echo "Too high"


    elif [[ $((number - guess)) -le 10 ]] 
    then 
    if [[ $((number - guess)) -lt 0 ]]
    then
            echo "You are within ten on the higher side"
    else

            echo "You are within ten on the lower side"
    fi
    fi
done
echo "Well done $name, it took $goes goes to guess $number"

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