????：<?php//聲明相加函數(shù) function sum($a,$b){ $total=$a+$b; return $total; }//調(diào)用sum函數(shù)echo sum(10,20);
<?php
//聲明相加函數(shù)
function sum($a,$b){
$total=$a+$b;
return $total;
}
//調(diào)用sum函數(shù)
echo sum(10,20);
?? ???：天蓬老師?? ??：2019-08-07 13:26:38
???? ??：這個案例有點太簡單了吧..... 試著增加點難度