访问此链接并阅读transporter 参数：https://codex.wordpress.org/Theme_Customization_API

这就是你要找的吗？

下面是一个示例：

<?php

add_action( \'customize_register\', \'my_customizer\' );
function my_customizer($wp_customize){
    $wp_customize->add_section( \'my_section\', 
        array(
            \'title\' => __( \'My Custom Section\', \'mytheme\' ), //Visible title of section
            \'capability\' => \'edit_theme_options\', //Capability needed to tweak
        )
    );
    $wp_customize->add_setting( \'my_setting\', 
        array(
            \'default\' => \'option1\', //Default setting/value to save
            \'type\' => \'theme_mod\', //Is this an \'option\' or a \'theme_mod\'?
            \'capability\' => \'edit_theme_options\', //Optional. Special permissions for accessing this setting.
            \'transport\' => \'postMessage\', //What triggers a refresh of the setting? \'refresh\' or \'postMessage\' (instant)?
        ) 
    );
    $wp_customize->add_control(
        \'my_control\', 
        array(
            \'label\'    => __( \'My Custom Control\', \'mytheme\' ),
            \'section\'  => \'my_section\',
            \'settings\' => \'my_setting\',
            \'type\'     => \'radio\',
            \'choices\'  => array(
                \'option1\'  => \'Option 1\',
                \'option2\' => \'Option 2\',
            ),
        )
    );
}