转自：https://blog.csdn.net/WYXXXXXXXXX/article/details/108408620

解决方案：

打开application目录下.htaccess文件

<IfModule mod_rewrite.c>
  Options +FollowSymlinks -Multiviews
  RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d

RewriteCond %{REQUEST_FILENAME} !-f

RewriteRule ^(.)$ index.php?/$1 [QSA,PT,L]

</IfModule>

正常是像上面这样的语句，我们把最后一句注释掉，然后加上
RewriteRule ^(.)$ index.php [L,E=PATH_INFO:$1]

<IfModule mod_rewrite.c>
  Options +FollowSymlinks -Multiviews
  RewriteEngine On

  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !-f
#  RewriteRule ^(.*)$ index.php?/$1 [QSA,PT,L]
  RewriteRule ^(.*)$ index.php [L,E=PATH_INFO:$1]
</IfModule>

OK，问题解决