我正在编写我的第一个插件，要访问/保存我遵循的选项codex.wordpress.org/Creating_Options_Pages 我基本上是在一个单独的文件中复制了“一起看”的示例mhomepage_admin_menu.php

插件的主代码如下

if ( is_admin() ){ // admin actions
    add_action(\'admin_menu\', \'add_plugin_admin_page\' );
    add_action(\'admin_init\', \'register_mhomepage_settings\' );

} else {
  // non-admin enqueues, actions, and filters
}

function register_mhomepage_settings() { // whitelist options
  register_setting( \'mhomepage_option_group\', \'left_right_margin_option\' );
  register_setting( \'mhomepage_option_group\', \'top_margin_option\' );
  register_setting( \'mhomepage_option_group\', \'include_comments_option\' );
}  

function add_plugin_admin_page($plugin_name) {
    add_menu_page( \'mHomePage\', \'mHomePage\', \'manage_options\', \'mhomepage/mhomepage_admin_menu.php\', \'\', \'\', 6 );

}

<div class="wrap">
<h2>Your Plugin Name</h2>

<form method="post" action="options.php">
    <?php settings_fields( \'mhomepage_option_group\' ); ?>
    <?php do_settings( \'mhomepage_option_group\' ); ?>
    <table class="form-table">

Q1：如何修复错误<form method="post" action="options.php">? 是吗mhomepage_admin_menu.php?