Method get_instance

pdf2zh/config.py:13–20

获取单例实例

(cls)

    @classmethod
    def get_instance(cls):
        """获取单例实例"""
        # 先判断是否存在实例，如果不存在再加锁进行初始化
        if cls._instance is None:
            with cls._lock:
                if cls._instance is None:
                    cls._instance = cls()
        return cls._instance

    def __init__(self):
        # 防止重复初始化