#! /bin/bash
#排序整数，从小到大 冒泡排序read a b c d
ar=($a $b $c $d)for((i=0;i<=3;i++))
do
for((j=0;j<=((3-1-$i));j++))
do
if [ ${ar[$j]} -gt ${ar[(($j+1))]} ]
then
d=${ar[(($j+1))]}
ar[(($j+1))]=${ar[$j]}
ar[$j]=$d
fi
done
doneecho "${ar[*]}"

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