header("Access-Control-Allow-Origin:*");
header("Access-Control-Allow-Methods:GET, POST, OPTIONS, DELETE");
header("Access-Control-Allow-Headers:DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type, Accept-Language, Origin, Accept-Encoding");

?把上面代碼加入到public/index.php入口文件，生產環境把header("Access-Control-Allow-Origin:*");后面星號換成允許的域名，安全起見

<?php
header("Access-Control-Allow-Origin:*");
header("Access-Control-Allow-Methods:GET, POST, OPTIONS, DELETE");
header("Access-Control-Allow-Headers:DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type, Accept-Language, Origin, Accept-Encoding");



// [ 應用入口文件 ]
// 定義應用目錄
define('APP_PATH', __DIR__ . '/../application/');

// 判斷是否安裝
if (!is_file(APP_PATH . 'admin/command/Install/install.lock')) {
    header("location:./install.php");
    exit;
}

// 加載框架引導文件
require __DIR__ . '/../thinkphp/start.php';

?