abstract:<?php//定義函數(shù)function a($a2=1 ,$b2=2){ return $a2 + $b2; }echo a();
<?php
//定義函數(shù)
function a($a2=1 ,$b2=2){
return $a2 + $b2;
}
echo a();
Correcting teacher:天蓬老師Correction time:2019-03-27 13:17:06
Teacher's summary:函數(shù)是任何一門編程語(yǔ)言都有的概念, 也是實(shí)現(xiàn)代碼復(fù)用的重要手段