照着题目给的答案写的话会多输出一次"我还没吃饱呢！“
<?php
$sum = 12;//小宠物当前的饥饿程度
echo "我饿啦:-(";
echo "<br />";
while($sum<100){
$num = rand(1,20);
$sum = $sum + $num;
if($sum<100){
echo "我还没吃饱呢！HP:".$sum;
echo "<br />";
}
}
echo "终于吃饱啦^_^ HP:".$sum;
?>
