系统发生异常，请查看日志文件：runtime/log/error.log
[Exception] Class "think\Container" not found in /www/wwwroot/medical_b2b/thinkphp/src/think/App.php on line 39
Stack trace:
#0 /www/wwwroot/medical_b2b/public/index.php(149): require()
#1 {main}