abstract: //整数相加函数 <?php function a ($b,$c){ return $b+$c; }  
//整数相加函数 <?php function a ($b,$c){ return $b+$c; } echo a(10,20); echo "<hr>"; echo a(55,37); ?>
Correcting teacher:天蓬老师Correction time:2019-03-22 10:38:45
Teacher's summary:函数的声明与调用, 函数远不止这一种形式, 试试其它的