2024.1.15

1.输入一个数，判断是否是偶数，使用test指令

#!/bin/bash
echo "please input a number"
read a
if [ $((a%2)) -eq 0 ]
then 
	echo "$a 是偶数"
else
	echo "$a 是奇数"
fi

2.输入两个数 实现两个数的排序，使用test指令

#!/bin/bash
echo "please input two number"
read number1 number2
if [ $number1 -gt $number2 ]
then
	t=$number1
	number1=$number2
	number2=$t
	echo "升序为：$number1  $number2"
else
	echo "升序为：$number1  $number2"
fi

3.输入一个数，判断是否是水仙花

#!/bin/bash 
echo "请你输入三位数"
read number
g=$((number%10))
s=$((number/10%10))
b=$((number/100))
sum=$((g**3+s**3+b**3))
if [ $sum -eq $number ]
then
	echo "$number 是水仙花"
else
	echo "不是水仙花"
fi