1、第一步就是新建跨域文件，即跨域中间件 跨域中间件的代码如下 <?php declare(strict_types=1); namespaceApp\Middleware; namespaceApp\Middleware; namespaceApp\Middleware; useHyperf\Context\Context; usePsr\Http\Message\ResponseInterface; usePsr\Http\Message\ServerRequestInterface; usePsr\Http\Server\MiddlewareInterface; us...