小编Kal*_*lov的帖子

我正在使用WooCommerce：根据businessbloomer 的自定义单选按钮添加结帐费用

我的问题是woocommerce_form_field()在第 1 部分中使用了哪个

// etc...
echo '<div id="checkout-radio">';
echo '<h3>Customize Your Order!</h3>';
woocommerce_form_field( 'radio_choice', $args, $chosen );
echo '</div>';
// etc...

woocommerce_form_field( 'radio_choice', $args, $chosen );输出的 HTML 的结构是

<p class="form-row form-row-wide update_totals_on_change" id="radio_choice_field" data-priority="">
    <span class="woocommerce-input-wrapper"> 
        <input type="radio" class="input-radio " value="0" name="radio_choice" id="radio_choice_0">
        <label for="radio_choice_0" class="radio ">No Option</label>
        <input type="radio" class="input-radio " value="10" name="radio_choice" id="radio_choice_10">
        <label for="radio_choice_10" class="radio ">Option 1 ($10)</label>
        <input type="radio" class="input-radio " value="30" name="radio_choice" id="radio_choice_30" checked="checked">
        <label for="radio_choice_30" class="radio …