Question

有没有更好的方法可以避免if语句多次重复这个条件？

reference

我尝试使用for entity in entities: if (entity.entity_id.startswith('sensor') and "sourcenodeid" not in entity.entity_id and "interval" not in entity.entity_id and "previous" not in entity.entity_id and "exporting" not in entity.entity_id and "management" not in entity.entity_id and "yr" not in entity.entity_id and "alarm" not in entity.entity_id ): data = remote.get_state(api, entity.entity_id) #print(data)，但它无法正常工作，因为我得到的实体条件不应该存储在数据中。

Answer 1

使用内置all：

tup = ("sourcenodeid", "interval", "previous", "exporting", "management" , "yr", "alarm")
for entity in entities:
    if entity.entity_id.startswith('sensor') and \
       all(x not in entity.entity_id for x in tup)):
        data = remote.get_state(api, entity.entity_id)

Answer 2

将生成器表达式与all一起使用。

if entity.entity_id.startswith('sensor') and all(elem not in entity.entity_id for elem in ("sourcenodeid", "interval", "previous", "exporting", "management", "yr", "alarm")):

如何避免在python中使用if语句多次重复这个条件？

2 个答案: