abstract：二个数值相加<?phpfunction leijia($a,$b){ $c = $a + $b; return $c;}echo leijia(3,9);/** * Created by PhpStorm. * User: Administrator * Date: 2019/3/19 * Time: 14:19 */
二个数值相加
<?php
function leijia($a,$b)
{
$c = $a + $b;
return $c;
}
echo leijia(3,9);
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2019/3/19
* Time: 14:19
*/
Correcting teacher：西门大官人Correction time：2019-03-20 09:36:12
Teacher's summary：函数分为有参和无参函数，函数的参数叫“形参”，调用函数的时候传递的参数叫实参