猜数字

```#!/bin/bash
flag=true
for i in {1..3};do
    echo "第$i机会..."
    read -p "请输入数字：" num

    if test $num -lt 100 ;then
        echo "数字过小"

    elif [ $num -gt 100 ];then
        echo "数字太大了"
    else
        echo "猜对了"
        flag=false
        break
    fi
done

if $flag ;then
    echo "3次机会用完"

fi