shell实现FizzBuzzWhizz问题示例(拉勾网面试题)

试题: https://www.jinshuju.net/f/EGQL3D

语言: Shell (Bash)

运行方式:

sh num-game.sh 数字1 数字2 数字3

如果不想使用传递数字的方式, 可以修改 num-game.sh 第 9 行, 将

NUM=$*

改为

NUM=数字1 数字2 数字3

然后直接运行 sh num-game.sh 即可

复制代码

代码如下:

#!/bin/bash

## Author : TaxKiz

## Email  : taxkiz@gmail.com

export PATH=/bin:/sbin:/usr/bin:/usr/sbin

## NUM=3 5 7

NUM=$*

## 检查输入的数字个数是否为 3 个

function CT () {

[ $( echo $* | sed s/ /n/g | wc -l ) != 3 ] && echo ” Please Enter 3 Number ! ” && exit 1

}

CT $NUM

## 个位数列表

NT=1/2/3/4/5/6/7/8/9

## 检查输入的数字是否为个位数

function CK () {

    for num in $*

    do

        [ $num == 0 ] && echo “Error Number $num” && exit 2

echo $NT | grep “b$numb” > /dev/null 2>&1

        [ $? != 0 ] && echo “$num is not a single digit” && exit 3

    done

}

CK $NUM

## 判断是否有重复的数字

function SN () {

    if [ $1 == $2 ] || [ $1 == $3 ] || [ $2 == $3 ]; then

echo “ERROR! There have same number : $*”

        exit 4

    fi

}

SN $NUM

## 大喊一声

function GO () {

    A1=$1

    A2=$2

    A3=$3

    T1=$(( $1 * $2 ))

T2=$(( $1 * $3 ))

    T3=$(( $2 * $3 ))

    TA=$(( $1 * $2 * $3 ))

    for num in {1..100}

    do

echo $num | grep $A1 > /dev/null 2>&1

        [ $? == 0 ] && echo Fizz && continue

        echo “scale=2; $num/$TA” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo FizzBuzzWhizz && continue

        echo “scale=2; $num/$T1” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo FizzBuzz && continue

        echo “scale=2; $num/$T2” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo BuzzWhizz && continue

        echo “scale=2; $num/$T3” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo FizzWhizz && continue

        echo “scale=2; $num/$A1” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo Fizz && continue

        echo “scale=2; $num/$A2” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo Buzz && continue

        echo “scale=2; $num/$A3” | bc | grep 00 > /dev/null 2>&1

[ $? == 0 ] && echo Whizz && continue

        echo $num

    done

}

GO $NUM