feat:公共request

@@ -112,7 +112,7 @@ class BinanceSpot
      * @param int $type (=1：行情等接口，不需要签名；=2：账户等接口需要签名)
      * @return array|int|mixed
      */
-    public function request($path, $method, $param, int $type=1)
+    public function request(string $path, string $method, array $param, int $type=1)
     {
         if($type==2){
             return self::requestAccount($method, $path, $param);