<?php switch ($type) { case 'get': get(); break; case 'put': put(); break; //.... } //查询 function get(){ $con=mysql_connect('localhost','root','123456') or die("连接失败"); $db_selected = mysql_select_db("user",$con); $sql = "SELECT * from user WHERE id='1'"; $info = mysql_query($sql,$con); mysql_close($con); } ?> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <ul> <li>学号:<?php echo $info['num'];?></li> <li>姓名:<?php echo $info['username'];?></li> <li>年龄:<?php echo $info['age']; ?></li> <li>性别:<?php echo $info['sex']; ?></li> </ul> </body> </html> 这样写就是restul风格吧. 可是我想知道$type 从何而来?