Method open_

quantdigger/kernel/engine/strategy.py:27–32

(self, index)

        用于套利等策略。
    """
    def open_(self, index):
        assert(index >= 0)
        if index == 0:
            return self.open 
        else:
            return self._excution.trackers[index-1].open

    def close_(self, index):
        assert(index >= 0)