feat：k线获取

@@ -771,6 +771,52 @@ class CmBroker
         }
         return [];
     }
+
+    /**
+     * 获取k线数据 根据开始结束时间
+     * @param string $symbol 交易对
+     * @param string $peroid 周期
+     * @param int $startTs 开始时间
+     * @param int $endTs 结束时间
+     * @return Kline[] 返回K线数组
+     */
+    public function getKlinesBt($symbol, $peroid, $startTs, $endTs)
+    {
+        $symbolOri = $this->getSymbolOri($symbol);
+        $peroidOri = $this->getPeriodOri($this->plat, $peroid);
+        if ($this->plat == self::PLAT_OKX) {
+            $limit = 100;
+            $res = $this->exBroker->getKlines($symbolOri, $peroidOri, $limit);
+            if ($res['code'] != '0') {
+                return [];
+            }
+            $newKlines = [];
+            foreach ($res['data'] as $key => $value) {
+                $kline = Kline::transferOkx($value);
+                $newKlines[] = $kline;
+            }
+            //把 $newKlines 倒序
+            $newKlines = array_reverse($newKlines);
+            return $newKlines;
+        }
+        if ($this->plat == self::PLAT_BINANCE) {
+            // $res = $this->exBroker->getKlines($symbolOri, $peroidOri, $limit);
+            $res = $this->exBroker->getKlines($symbolOri, $peroidOri, 1500, $startTs, $endTs);
+            if (count($res) == 0) {
+                return [];
+            }
+            $newKlines = [];
+            foreach ($res as $key => $value) {
+                $kline = Kline::transferBinanceRest($value);
+                $newKlines[] = $kline;
+            }
+            //把 $newKlines 倒序
+            $newKlines = array_reverse($newKlines);
+            return $newKlines;
+        }
+        return [];
+    }
+
     public function initPositions()
     {
         $this->positions = $this->getAllPos();