📜  sum variables shell - Shell-Bash 代码示例
📅  最后修改于: 2022-03-11 14:51:31.611000             🧑  作者: Mango
代码示例1
a=`expr "$a" + "$num"`
a=$(($a+$num))
((a=a+num))
let a=a+num
((a+=num))