计数器与 ID 生成器

计数器

from redis_kit import Counter

counter = Counter(conn.sync_client, prefix="myapp:counter")

counter.incr("page_views")
counter.incr("page_views", 5)
counter.decr("page_views")
value = counter.get("page_views")
counter.reset("page_views")

有界计数器（Bound Counter）

pv = counter.bind("page_views")
pv.incr()
pv.get()
pv.reset()

ID 生成器

from redis_kit import IDGenerator

id_gen = IDGenerator(conn.sync_client, "order_id", prefix="ORD", padding=8)
new_id = id_gen.next_str()  # "ORD00000001"
new_id = id_gen.next()      # 2 (raw int)