WooCommerce：免运费配送方法的配置字段文件位置咨询

Hey there! I’ve got you covered when it comes to locating the files that power WooCommerce’s built-in free shipping method (and its input fields) — since it strictly follows the WC_Shipping_Method structure you mentioned.

Here’s the breakdown:

• Core Free Shipping Class File:
  The main definition file for the default free shipping method lives directly in the WooCommerce core plugin. You’ll find it at this path:

  wp-content/plugins/woocommerce/includes/shipping/free-shipping/class-wc-shipping-free-shipping.php
  

  This file contains the WC_Shipping_Free_Shipping class, which extends WC_Shipping_Method — so all the method’s logic, settings, and field definitions are housed here.

• Input Field Definitions:
  Inside the WC_Shipping_Free_Shipping class, look for the init_form_fields() method. This is where all the backend input fields (like "Minimum order amount", "Free shipping requires...", and the enable/disable toggle) are registered. Each field is defined as an array with properties like title, type, description, and default values — matching the structure expected by the parent WC_Shipping_Method class.

• Bonus Note:
  If you’re working with a custom free shipping extension (not the built-in one), the definition file would be located in that extension’s directory instead. But for the default method enabled via WooCommerce’s backend settings, the core file above is your target.

内容的提问来源于stack exchange，提问作者Ostap Brehin