错误现象：Warning: session_start() [function.session-start]: open(C:\WINDOWS\Temp\session.save_path\sess_1ofrjf3oegtl8a1d3j1mipjeo7, O_RDWR) failed: No such file or directory (2) in D:\PHPnow\vhosts\127.0.0.11\ask\admin.php on line 13

Warning: Unknown: open(C:\WINDOWS\Temp\session.save_path\sess_1ofrjf3oegtl8a1d3j1mipjeo7, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (C:\WINDOWS\Temp\session.save_path) in Unknown on line 0

建一个这个目录，C:\WINDOWS\Temp\session.save_path\
如果有，就查一下看看有没有写入的权限