完善程序，以实现比较两个数大小 #!/bin/sh echo "Enter the first integer:" read first echo "Enter the second integer:" read second if （1） then echo "$first is greater than $second" elif （2） then echo "$first is less than $second" else echo "$first is equal to $second" fi

#!/bin/sh
echo "Enter the first integer:"
read first
echo "Enter the second integer:"
read second
if [ $first -gt $second ]; then
echo "$first is greater than $second"
elif [ $first -lt $second ]; then
echo "$first is less than $second"
else
echo "$first is equal to $second"
fi

在这段 Shell 脚本中，使用了 if-elif-else 结构来判断两个数的大小关系。关键是要使用比较运算符 > 和 < 来比较两个数的大小。如果第一个数大于第二个数，输出 "$first is greater than $second"；如果第一个数小于第二个数，输出 "$first is less than $second"；否则，输出 "$first is equal to $second"。

相关问题

完善程序，以实现比较两个数大小 #!/bin/sh echo "Enter the first integer:" read first echo "Enter the second integer:" read second if （1） then echo "$first is greater than $second" elif （2） then echo "$first is less than $second" else echo "$first is equal to $second" fi

#!/bin/sh

echo "Enter the first integer:"
read first

echo "Enter the second integer:"
read second

if [ "$first" -gt "$second" ]; then
echo "$first is greater than $second"
elif [ "$first" -lt "$second" ]; then
echo "$first is less than $second"
else
echo "$first is equal to $second"
fi

解释说明：
- "-gt" 表示大于
- "-lt" 表示小于
- "-eq" 表示等于
- "$first" 和 "$second" 表示变量 first 和 second 的值