<!DOCTYPE html> <html> <head> 判断是否为闰年还是平年 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> </head> <body> <form method="GET"> <input type="text" name="num" > <input type="submit" value="判断" /> </form> <?php $s=$_GET['num']; if(!is_numeric($s)){ echo "请输入数值类型"; } if(($s%400==0)||(($s%4==0)&&($s%100<>0))){ echo "闰年"; }else{ echo "平年"; } ?> </body> </html>
2017-09-064个赞
<?php //for的两层循环 echo '<table border="1" width="800">'; for ($i=1; $i <10; $i++) { echo '<tr yield>'. '<td>'.'</td>'.'</tr>'; for ($b=$i+1;; ) { echo '<tr bgcolor="red" >'. '<td>'.'</td>'.'</tr>'; break; } } echo '</table>'; ?>
2017-09-120个赞
课堂作业参考哦： <?php $l=0; echo '<table width="800" border="1">'; while ($l<10) { if ($l%2==0) { echo '<tr bgcolor="green">'; }else{ echo '<tr>'; } $h=0; while ($h < 10) { $t=$l*10+$h; echo '<td>'."$t".'</td>'; $h++; } $l++; echo '</tr>'; } echo '</table>'; ?>
2017-09-100个赞
