标签：arguments amp exp argument nts tor dev $# put
#! /bin/bashecho "$1+$2 is $(($1+$2))"
echo "$1$2 is $(($1$2))"
echo "$1-$2 is $(($1-$2))"
echo "$1/$2 is $(($1/$2))"
标签：arguments amp exp argument nts tor dev $# put
原文地址：http://blog.51cto.com/546136/2059684
