百钱百鸡:
<?php ???$num=0; ???for($gj=1;$gj<=49;$gj++){ ???????for($mj=1;$mj<=97;$mj++){ ???????????for($xj=1;$xj<=97;$xj++){ ???????????????if($gj*2+$mj*1+$xj*0.5==100&&$gj+$mj+$xj==100){ ???????????????????$num++; ???????????????????echo "公鸡:".$gj."母鸡:".$mj."小鸡:".$xj; ???????????????????echo "<br />"; ???????????????} ???????????} ???????} ???} ???echo $num."种";
九九乘法表:
for($a=0;$a<=9;$a++){ ???????for($b=0;$b<=9;$b++){ ???????????echo $a."*".$b."=".$a*$b." "; ???????} ???????echo "<br />"; ???}
php习题
原文地址:https://www.cnblogs.com/liangdong/p/10224340.html