$cookie_file = tempnam(SAE_TMP_PATH, 'cookie');    //用于保存cookie在sae 
$ch=curl_init("http://教务地址/default2.aspx");  
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);                //禁止重定向  
curl_setopt($ch, CURLOPT_TIMEOUT,1000);   
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);  
$str=curl_exec($ch);  
$info=curl_getinfo($ch);  
curl_close($ch);  
$pattern = '/<input type="hidden" name="__VIEWSTATE" value="(.*?)" \/>/i'; 
 preg_match($pattern, $str, $matches);  
 $view = urlencode($matches[1]);  
 $login_url="http://教务地址/default2.aspx"; 
 $login="__VIEWSTATE={$view}&TextBox1={$jwid}&TextBox2={$jwpwd}&RadioButtonList1=%D1%A7%C9%FA&Button1=&lbLanguage=";                   //用于提交登录数据  
  $ch=curl_init();  
  curl_setopt($ch, CURLOPT_URL,$login_url); 
  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); 
  curl_setopt($ch, CURLOPT_POST, 1); 
  curl_setopt($ch, CURLOPT_TIMEOUT,1000); 
  curl_setopt($ch, CURLOPT_POSTFIELDS, $login);  curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);  
  curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); 
  $str=curl_exec($ch);                                     //到这里已经登录成功，强调 echo  $str 也不会显示登录成功后的页面 
        curl_close($ch);