TP5自定义全局异常处理是出现错误，解决方法

TP5自定义全局异常处理，重新handle的render方法之后出现如下错误：

( ! ) Fatal error: Uncaught think\exception\ErrorException: Declaration of app\lib\exception\ExceptionHandler::render(think\Exception $ex) should be compatible with think\exception\Handle::render(Exception $e) in /users/jackie/WWW/carpic/server/application/lib/exception/ExceptionHandler.php on line 10
( ! ) think\exception\ErrorException: Declaration of app\lib\exception\ExceptionHandler::render(think\Exception $ex) should be compatible with think\exception\Handle::render(Exception $e) in /users/jackie/WWW/carpic/server/application/lib/exception/ExceptionHandler.php on line 10
Call Stack
#	Time	Memory	Function	Location
1	0.0698	1920984	think\Error::appException( )	.../Error.php:0
2	0.0698	1920984	think\Error::getExceptionHandler( )	.../Error.php:43
3	0.0698	1921008	class_exists ( )	.../Error.php:109
4	0.0698	1921072	spl_autoload_call ( )	.../Error.php:109
5	0.0698	1921136	think\Loader::autoload( )	.../Error.php:109
6	0.0698	1921280	think\__include_file( )	.../Loader.php:58
7	0.0701	1923232	include( '/users/jackie/WWW/carpic/server/application/lib/exception/ExceptionHandler.php' )	.../Loader.php:562
8	0.0706	1961984	think\Error::appError( )	.../ExceptionHandler.php:10
"~~~~~"

测试错误信息能正常输出，但是出现致命错误提示；然后看了下handle下的render方法里(Exception $e)用的是use Exception；而我用的是 use think\Exception;
将use think\exception 改为 use Exception，改正后错误小时，以此记录。