摘要:
数据表结构 函数: function make_tree($list,$pk='id',$pid='pid',$child='_child',$root=0){ $tree=array(); $packData=array(); //转换数组的结构 foreach ($list as $data) 阅读全文
摘要:
<?phpfunction sqare($a, $left, $right){ $mid = ($left + $right)/2; if($mid * $mid == $a || (abs($mid * $mid - $a) < 0.000000000001)){ echo $mid; }else 阅读全文