执行脚本前，有redis-cli中查询key值：
执行脚本：
****************************** redis的乐观锁 脚本如下 *****************************import redisdef key_for(user_id): return "account_{}".format(user_id)def double_account(client, user_id): key = key_for(user_id) while True:client.watch(key) value = int(client.get(key)) value *=2 pipe = client.pipeline(transaction=True) pipe.multi() pipe.set(key,value) try:pipe.execute() break except redis.WatchError: continue return int(client.get(key))if __name__ == "__main__": client = redis.StrictRedis(host="192.168.1.100", port = 7000) user_id = "abc" client.setnx(key_for(user_id),5) print (double_account(client,user_id))
转载于:https://www.cnblogs.com/linlianhuan/p/9794395.html
