Fatal error: Uncaught Error: Class 'Redis' not found in D:\www\wwwroot\changhuicc.com\app\Tool.php:70 Stack trace: #0 D:\www\wwwroot\changhuicc.com\app\Auth.php(153): App\Tool::redis() #1 D:\www\wwwroot\changhuicc.com\app\Auth.php(280): App\Auth::checkLoginStatusWithRedis() #2 D:\www\wwwroot\changhuicc.com\app\Auth.php(311): App\Auth::getUserWithRedis() #3 D:\www\wwwroot\changhuicc.com\app\common\header.php(20): App\Auth::user() #4 D:\www\wwwroot\changhuicc.com\app\view\index.php(6): require('D:\\www\\wwwroot\\...') #5 D:\www\wwwroot\changhuicc.com\index.php(126): require('D:\\www\\wwwroot\\...') #6 {main} thrown in D:\www\wwwroot\changhuicc.com\app\Tool.php on line 70