简单的两个整数相加

Original 2019-03-18 22:33:24 181
abstract:<?php $a=1; $b=2; echo $a+$b; ?>总结:
<?php
$a=1;
$b=2;
echo $a+$b;
?>

总结:

Correcting teacher:天蓬老师Correction time:2019-03-19 09:28:36
Teacher's summary:这也太简单了吧, 对于这么简单的运算,需要变量吗?

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