标签：break read ash while bin inux case The rand
#!/bin/bash
echo ‘可以输入q或者quit退出‘
a=$[RANDOM%100+1]
while :; do
read -p ‘请输入一个数字(1-100):‘ num
i=`echo $num | sed ‘s/[0-9]//g‘`
if [ -z "$num" ];then
echo ‘不能什么都不输入‘
continue
fi
if [ $num == q ] || [ $num == quit ];then
exit 2
fi
if [ ! -z "$i" ];then
echo ‘你输入的不是数字‘
continue
fi
if [ $num -lt 1 ] || [ $num -gt 100 ];then
echo ‘你输入的数字不再1-100内‘
continue
fi
if [ $num -lt $a ];then
echo ‘猜错了，太小了‘
elif [ $num -gt $a ];then
echo ‘猜错了，太大了‘
else
echo ‘恭喜你，猜对了‘
read -p ‘还想再来一局吗，请输入yes或者no:‘ ab
case $ab in
yes)
continue
;;
no)
exit
;;
*)
break
;;
esac
fi
done
echo ‘你有输入正确选择，默认退出‘
标签：break read ash while bin inux case The rand
原文地址：http://blog.51cto.com/13956220/2170859
