运行成功输出错误
<?php
$my_book = "我的小写的book";
$my_BOOK = "我的大写的BOOK";
echo $my_book;
echo "<br />";
echo $my_BOOK;
echo "<br />";
$my_book="这次奇迹要发生了";
echo $my_book;
echo "<br />";
?>
<?php
$my_book = "我的小写的book";
$my_BOOK = "我的大写的BOOK";
echo $my_book;
echo "<br />";
echo $my_BOOK;
echo "<br />";
$my_book="这次奇迹要发生了";
echo $my_book;
echo "<br />";
?>
2020-08-13
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