## Coroutine::create 創建一個新的協程，并立即執行。 ~~~ function Swoole\Coroutine::create(callable $function, ...$args) : int|false; function go(callable $function, ...$args) : int|false; // 短名API ~~~ <br> ## 參數 * `$function`協程執行的代碼，必須為`callable`，系統能創建的協程總數量受限于`server->max_coroutine`設置 <br> ## 返回值 * 創建失敗返回`false` * 創建成功返回協程的`ID` ``` go(function () { $db = new Co\MySQL(); $server = array( 'host' => '127.0.0.1', 'user' => 'root', 'password' => 'root', 'database' => 'test', ); $db->connect($server); $result = $db->query('SELECT * FROM userinfo WHERE id = 3'); var_dump($result); }); ```