原来别人写好的注册SESSION的程序:$_SESSION["username"] = $user -> username;
$_SESSION["UserCookie"] = $user-> one;

setcookie("username",$user-> username,time()+94608000,"/",".baidu.com");
setcookie("UserCookie",$user-> one,time()+94608000,"/",".baidu.com");
setcookie("TwoCookie",$user -> two,time()+94608000,"/",".baidu.com");
$Set = true;