#!/bin/bash
function fun()
{
	sum=0
	i=0
	b=($*)
	while [ $i -lt ${#b[*]} ]
	do
		((sum += ${b[i]}))
		((i++))
	done
	echo $sum
}

read -p "请输入数组" -a a
fun ${a[*]}


function fun2()
{
	a=`id -u`
	b=`id -g`
	echo $a $b
}
p=(`fun2`)
uid=${p[0]}
pid=${p[1]}
echo $uid $pid

XMind