我的问题是访问主站点：example.com没有指向index.php，我必须手动输入完整的url example.com/index.php。

子域sub01.example.com运行良好，自动指向index.php.

我有以下3个站点，请帮助检查

主站点：example.com

子域：sub01.example.com，sub02.example.com

这是我的配置：

    server {
    listen   80;
    server_name www.example.com;
    return 301 $scheme://example.com$request_uri;
}
server {
    listen   80;
    server_name example.com;
    # root directive should be global
    root   /var/www/example.com/;
    index  index.php;
    access_log /var/www/example.com/logs/nginx_access.log;
    error_log /var/www/example.com/logs/nginx_error.log;
    location / {
        try_files $uri $uri/ /index.php?$args;
    }
    location ~ '.php$ {
        try_files $uri =404;
        include /etc/nginx/fastcgi_params;
        fastcgi_pass    127.0.0.1:9000;
        fastcgi_index   index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}
server {
    listen   80;
    server_name sub01.example.com www.sub01.example.com;
    # root directive should be global
    root   /var/www/sub01.example.com/;
    index  index.php;
    access_log /var/www/sub01.example.com/nginx_access.log;
    error_log /var/www/sub01.example.com/nginx_error.log;
    location / {
        try_files $uri $uri/ /index.php?$args;
    }
    location ~ '.php$ {
        try_files $uri =404;
        include /etc/nginx/fastcgi_params;
        fastcgi_pass    127.0.0.1:9000;
        fastcgi_index   index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}
server {
    listen   80;
    server_name sub02.example.com www.sub02.example.com;
    # root directive should be global
    root   /var/www/sub02.example.com/;
    index  index.php;
    access_log /var/www/sub02.example.com/logs/nginx_access.log;
    error_log /var/www/sub02.example.com/logs/nginx_error.log;
    location / {
        try_files $uri $uri/ /index.php?$args;
    }
    location ~ '.php$ {
        try_files $uri =404;
        include /etc/nginx/fastcgi_params;
        fastcgi_pass    127.0.0.1:9000;
        fastcgi_index   index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}