????: //整數(shù)相加函數(shù) <?php function a ($b,$c){ return $b+$c; }  
//整數(shù)相加函數(shù) <?php function a ($b,$c){ return $b+$c; } echo a(10,20); echo "<hr>"; echo a(55,37); ?>
?? ???:天蓬老師?? ??:2019-03-22 10:38:45
???? ??:函數(shù)的聲明與調(diào)用, 函數(shù)遠(yuǎn)不止這一種形式, 試試其它的