Linux 中（加、减、乘、除）实例详解

#!/bin/bashnum1=10num2=2#两个数相加add=$[$num1+$num2]echo $num1 + $num2 '=' $add#两个数相减sub=$[$num1-$num2]echo $num1 - $num2 '=' $sub#两个数相乘mut=$[$num1*$num2]echo $num1 '*' $num2 '=' $mut#两个数相除div=$[$num1/$num2]echo $num1 / $num2 '=' $div#固定值temp=$[$num1*10]echo $num1 '*' 10 '=' $temp